12-9-2018 ALBUFERA, VALENCIA - SQUACCO HERON (Ardeola ralloides)

The Squacco Heron, Ardeola ralloides, is a diminutive member of the heron family, measuring a mere 44–47 cm in length, with a compact body of 20–23 cm and a wingspan stretching 80–92 cm. This species is adorned with a buff-brown back and, during the summer months, adults boast elongated neck feathers that add to their allure.

In the field, one may identify the Squacco Heron by its stocky build, abbreviated neck, and stout bill. Its back is cloaked in a buff-brown hue. When in flight, the heron undergoes a remarkable transformation, revealing a predominantly white plumage that contrasts starkly with its resting appearance.

The Squacco Heron favors marshy wetlands in temperate regions for its habitat, where the water is warm and inviting.

Originating from the Old World, the Squacco Heron breeds in the southern reaches of Europe and extends into the Greater Middle East. When not breeding, it migrates to winter in the African continent.

This species is migratory by nature, seeking the warmer climates of Africa to spend the winter. It is seldom seen north of its breeding grounds. The Squacco Heron has been observed as a vagrant in the Fernando de Noronha islands and, on rarer occasions, in mainland South America. It nests in modest colonies, often in the company of other wading birds, and constructs its nests from sticks on platforms in trees or shrubs.

The Squacco Heron selects freshwater locales across Europe and the Middle East to breed, later migrating southward to the Sub-Saharan African region. During the breeding season, they lay a clutch of three to four eggs.

Adept at foraging, the Squacco Heron feeds on a diet consisting of fish, frogs, and insects, making the most of its wetland environment.

The IUCN Red List currently classifies the Squacco Heron as Least Concern, indicating a stable population without immediate threats to its survival.

Non-breeding Squacco Herons share certain physical characteristics with other heron species such as the Indian Pond Heron and the Malagasy Pond Heron, including tawny plumage, lighter streaking, a smaller bill, and narrower wing tips.

The Squacco Heron uses freshwater localities throughout Europe and the Middle East as breeding grounds to later migrate south to the Sub-Saharan African region. Non-breeding Squacco Herons share similar traits with other heron species like the Indian Pond Heron and Malagasy Pond Heron which show tawny color plumage, lighter streaking, smaller bill, and narrower wing tips.

The squacco heron is a migrant, wintering in Africa. It is rare north of its breeding range. The species has been recorded in Fernando de Noronha islands, and more rarely in mainland South America, as a vagrant. This is a stocky species with a short neck, short thick bill and buff-brown back. In summer, adults have long neck feathers. Its appearance is transformed in flight, when it looks very white due to the colour of the wings.

The squacco heron's breeding habitat is marshy wetlands in warm countries. The birds nest in small colonies, often with other wading birds, usually on platforms of sticks in trees or shrubs. Three to four eggs are laid. They feed on fish, frogs and insects.

The Squacco Heron selects freshwater locales across Europe and the Middle East to breed, later migrating southward to the Sub-Saharan African region. During the breeding season, they lay a clutch of three to four eggs.

Adept at foraging, the Squacco Heron feeds on a diet consisting of fish, frogs, and insects, making the most of its wetland environment.

The IUCN Red List currently classifies the Squacco Heron as Least Concern, indicating a stable population without immediate threats to its survival.

Non-breeding Squacco Herons share certain physical characteristics with other heron species such as the Indian Pond Heron and the Malagasy Pond Heron, including tawny plumage, lighter streaking, a smaller bill, and narrower wing tips.

13-9-2018 GANDIA, VALENCIA - EGYPTIAN BIRD GRASSHOPPER (Anacridium aegyptium)

Anacridium aegyptium, the Egyptian grasshopper or Egyptian locust, is a species of insect belonging to the subfamily Cyrtacanthacridinae.

Anacridium aegyptium var. rubrispinum Bei-Bienko, 1948 - Anacridium rubrispinum Bei-Bienko, 1948

A fairly common species, the Egyptian grasshopper is present in most of Europe, the Afrotropical realm, eastern Palearctic realm, the Near East, and North Africa, and has recently been observed in Cape Town, South Africa.

These grasshoppers inhabit trees and shrubs, scrub land, maquis, and orchards in warm and bright environments, at an elevation from sea level to 1,500 m.

Anacridium aegyptium is one of the largest European grasshoppers. Adult males grow up to 30–56 mm (1.2–2.2 in) long, while females reach 46–70 mm (1.8–2.8 in) in length. Their bodies are usually gray, brown, or olive-coloured, and their antennae are relatively short and robust. The tibiae of the hind legs are blue, while the femora are orange. The hind femora have characteristic dark marks. They are also easily identified by their characteristic eyes, which have vertical black and white stripes. Their pronota show a dorsal orange stripe and several small white spots. The wings are clear with dark marks.

This species is a folivore, essentially feeding on leaves of various plants. It is a solitary species, harmless to crops. Adults are mainly seen in August and September, but they are active throughout the year. After mating, these grasshoppers overwinter as adults. Spawning occurs in spring just under the soil surface and the nymphs appear in April. These grasshoppers undergo several molts. Nymphs differ from adults in appearance; their color varies from yellow to bright green and ocher and the wings are absent or small, as they are gradually developed after each molt.

12-9-2018 MONTE CORONA, VALENCIA - ROUGH HAIRED LAGRIA BEETLE (Lagria hirta)

Lagria hirta is a species of beetles in the family Tenebrionidae.

The species name hirta comes from the Latin hirtus meaning rough hair or rough wool, referring to the coarse, fuzzy appearance of the beetle.

This species is present in Europe, in North Africa (Algeria, Morocco), in Russia (Western and Eastern Siberia), in Israel, Turkey, Iran, Iraq, Paraguay, Kazakhstan, Turkmenistan, Uzbekistan and Tajikistan.

It prefers areas with sandy soils. It can be found in open woods, in deciduous forests, in forest clearings, forest edges, in grasslands and wet meadows, but also in dry valleys and wet areas.

Lagria hirta can reach a length of 7–8 millimetres (0.28–0.31 in). These beetles have a soft and elongated body and a head and thorax brown or shiny black. The relatively elongated elytra are yellowish-brown and covered by dense fine light yellowish-brown hairs. The rest of the body is also hairy, but they are less clearly visible. Antennae, underside of body and legs are black. The eyes are remarkably large and round. Antennae are composed with eleven segments.

The elytra of the females are more extended backward than in the males and the female's abdomen looks from above wider than in the males. The male, in addition to its slimmer body, is distinguished from the females by their larger eyes and by the length of the last segment of the antennae, which is nearly twice the corresponding segment in the female. The hind wings are transparent.

The fully formed beetles can be seen from late May to September. The adult beetles feed on nectar and pollen. Females lay the eggs in the soil where they hatch after about eight days. The larvae live in the humus where they feed on decaying vegetables. After having overwintered larvae pupate in early summer of the next year and a new generation of beetles will then develop.

12-9-2018 RACO DE OLLA, VALENCIA - EGYPTIAN BIRD GRASSHOPPER (Anacridium aegyptium)

Anacridium aegyptium, the Egyptian grasshopper or Egyptian locust, is a species of insect belonging to the subfamily Cyrtacanthacridinae.

Anacridium aegyptium var. rubrispinum Bei-Bienko, 1948 - Anacridium rubrispinum Bei-Bienko, 1948

A fairly common species, the Egyptian grasshopper is present in most of Europe, the Afrotropical realm, eastern Palearctic realm, the Near East, and North Africa, and has recently been observed in Cape Town, South Africa.

These grasshoppers inhabit trees and shrubs, scrub land, maquis, and orchards in warm and bright environments, at an elevation from sea level to 1,500 m.

Anacridium aegyptium is one of the largest European grasshoppers. Adult males grow up to 30–56 mm (1.2–2.2 in) long, while females reach 46–70 mm (1.8–2.8 in) in length. Their bodies are usually gray, brown, or olive-coloured, and their antennae are relatively short and robust. The tibiae of the hind legs are blue, while the femora are orange. The hind femora have characteristic dark marks. They are also easily identified by their characteristic eyes, which have vertical black and white stripes. Their pronota show a dorsal orange stripe and several small white spots. The wings are clear with dark marks.

This species is a folivore, essentially feeding on leaves of various plants. It is a solitary species, harmless to crops. Adults are mainly seen in August and September, but they are active throughout the year. After mating, these grasshoppers overwinter as adults. Spawning occurs in spring just under the soil surface and the nymphs appear in April. These grasshoppers undergo several molts. Nymphs differ from adults in appearance; their color varies from yellow to bright green and ocher and the wings are absent or small, as they are gradually developed after each molt.

12-9-2018 ALBUFERA, VALENCIA - LITTLE EGRET (Egretta garzetta)

The Little Egret, Egretta garzetta, is a dainty heron adorned in pure white plumage. It is characterized by a slender black beak, long black legs, and, notably in the western race, yellow feet. This elegant bird is a sight to behold with its graceful neck and poised stance.

Adult Little Egrets measure between 55–65 cm in length with a wingspan of 88–106 cm, and weigh 350–550 g. Their plumage is predominantly white, though some may exhibit bluish-grey coloration. Breeding adults boast ornate nape plumes reaching about 150 mm, along with distinctive feathers on the breast and elongated scapulars. The bill and lores are black, with greenish-grey skin at the base of the lower mandible and around the eye, which houses a yellow iris. Legs are black with contrasting yellow feet, though juveniles may have greenish-black legs and duller feet. The subspecies E. g. nigripes is distinguished by yellow skin between the bill and eye, and blackish feet.

The Little Egret frequents a variety of wetland habitats, from the shores of lakes and rivers to marshes and coastal regions. It is often found in open environments, such as mangroves, swamps, mudflats, and sandy beaches, as well as human-altered landscapes like rice fields.

29-3-2015 KERALA, INDIA - VELVET FRONTED NUTHATCH (Sitta frontalis)

The velvet-fronted nuthatch has the typical nuthatch shape, short tail and powerful bill and feet. It is 12.5 cm long. It is violet-blue above, with lavender cheeks, beige underparts, yellow eyes, and a whitish throat. The iris is distinctly pale and yellow. The bill is red, and there is a black patch on the forehead and lores which is well developed in adults and less so in younger birds. Young birds have a dark beak and dark tips to the undertail coverts. Adult males can be told apart by the black superciliary stripe that runs above the eye and over the head, towards the nape.

Females lack the supercilium and have a warmer underpart colour. Juveniles are duller versions of the adult lacking the black frontal band. There populations differ in shade and size and the distribution of white on the throat.

The velvet-fronted nuthatch is a resident breeder of all types of forests from deciduous to evergreen forest. In the Sunderbans, they are found in Sonneratia mangrove forests. They also live within secondary forest and make use of the shade trees in south Indian coffee plantations.

Like other nuthatches they have strongly curved claws that allow them to climb down vertical tree trunks, unlike species such as woodpeckers that only work their way upwards. It moves jerkily up and down or around tree branches and trunks. It is an active feeder on insects and spiders, gleaned on the bark of the trunk and branches, and may be found in mixed feeding flocks with other passerines. The insects they disturb are sometimes taken by the racket-tailed drongo in Sri Lanka.

28-12-2015 MEKONG DELTA, VIETNAM - BRONZE WINGED JACANA (Metopidius indicus)

The bronze-winged jacana (Metopidius indicus ) is a wader in the family Jacanidae. It is found across South and Southeast Asia and is the sole species in the genus Metopidius. Like other jacanas it forages on lilies and other floating aquatic vegetation, the long feet spreading out its weight and preventing sinking. The sexes are alike but females are slightly larger and are polyandrous, maintaining a harem of males during the breeding season in the monsoon rains. Males maintain territories, with one male in the harem chosen to incubate the eggs and take care of the young. When threatened, young chicks may be carried to safety by the male under his wings.

Bronze-winged jacanas are rail-like, large, short tailed birds that appear dark at a distance except for the supercilium. They are 29 cm (11 in) in length. The sexes are similar but the females are slightly larger than the males. The wings are bronzy brown with a green sheen and have a reduced tubercular carpal spur. The head, neck and breast are black and contrast with the broad white supercilium that runs from over the eye to the back of the neck. The lower back and tail coverts are chestnut. The tail is stubby and reddish brown with black terminal band. The greenish yellow bill has a red-base to the upper mandible. A lappet or frontal shield extends up over the forehead and is reddish purple. The legs are greenish. The toes are long and the straight and the elongated nail on the hind toe is longer than the toe. Downy chicks are light brown with a dark stripe running down the nape. Young birds have brown upperparts, a rufous crown, white underparts, a buff foreneck, an undeveloped frontal shield, and may have a dull supercilium. Adults can be confused at a distance with the common moorhen (which is found in similar habitat) and with the watercock and while young can appear similar to the young of the pheasant-tailed jacana, they lack the black necklace seen in that species.

28-12-2015 MEKONG DELTA, VIETNAM - BRONZE WINGED JACANA (JUVENILE) (Metopidius indicus)

12-9-2018 ALBUFERA, VALENCIA - SPOTTED FLYCATCHER (Muscicapa striata)

The Spotted Flycatcher, Muscicapa striata, is a modestly adorned yet charming small passerine bird belonging to the Old World flycatcher family. It is a migratory species, breeding across Europe and the Palearctic as far as Siberia, and spending the winter months in Africa and southwestern Asia. Despite its widespread presence, there is concern over its decline in certain areas.

Adult Spotted Flycatchers possess grey-brown upperparts and a somewhat pallid underbelly. Their crown and breast are streaked, which is the origin of their common name. They have short, black legs and a black bill shaped to suit their insectivorous diet. Juveniles can be distinguished by their browner plumage and the presence of spots on their upperparts.

These birds favor deciduous woodlands, parks, and gardens, particularly those with open spaces amidst trees.

The Spotted Flycatcher has a broad breeding range, extending from Europe to western Siberia and northwest Africa. During the non-breeding season, they migrate to southern Africa.

With an upright posture, these flycatchers are often seen hunting from prominent perches, darting out to snatch flying insects and frequently returning to the same spot.

The call of the Spotted Flycatcher is a soft, high-pitched, and slightly descending 'tssssseeeeeppppp'.

The Spotted Flycatcher constructs an open nest in a recess, often against a wall, and is amenable to using open-fronted nest boxes. Clutches typically consist of 4-6 eggs. Remarkably, they exhibit excellent egg recognition, a likely evolutionary response to past parasitism by the common cuckoo.

As aerial insectivores, Spotted Flycatchers feed on flying insects, which they catch in mid-air from their vantage points.

12-9-2018 ALBUFERA, VALENCIA - GREY HERON (Ardea cinerea)

The Grey Heron (Ardea cinerea) is a statuesque wading bird belonging to the family Ardeidae. It is a familiar sight in both rural and urban settings, often seen standing stoically along the water's edge. An adult Grey Heron is a large bird, reaching up to 100 cm in height, with a wingspan between 155 to 195 cm. It weighs between 1 to 2 kg. The plumage is predominantly ashy-grey above, with a greyish-white underbelly and some black on the flanks. A striking feature is the white head and neck adorned with a broad black stripe that extends from the eye to the black crest. The beak is pinkish-yellow, long, and sharply pointed, while the legs are a brown hue.

When identifying the Grey Heron, look for the white head with the black supercilium and crest, the long grey neck, and the ashy-grey wings and back. The underparts are lighter, and the legs are long and brown. Juveniles can be distinguished by their duller grey neck and smaller crest. The beak is a useful indicator of age, being brighter in breeding adults.

Grey Herons are highly adaptable and can be found in a variety of watery habitats including lakes, rivers, ponds, marshes, and coastal environments. They require shallow waters for foraging or areas with shelving margins where they can wade.

Native to temperate Europe and Asia, as well as parts of Africa, the Grey Heron has a broad range. Northern populations may migrate southwards in autumn, while others remain resident year-round. Vagrant sightings have occurred in the Caribbean, Bermuda, and parts of North America.

The Grey Heron exhibits a slow, deliberate flight with its neck retracted in an S-shape. It is known for its solitary foraging habits, often standing motionless or stalking prey through shallow waters. It is also a communal rooster, often found in trees or cliffs at night.

The primary call of the Grey Heron is a loud croaking "fraaank." At breeding colonies, a variety of guttural and raucous noises can be heard, including greeting calls between mates and alarm calls when predators are nearby.

Breeding takes place in colonies, or heronries, typically in high trees near water. Nests are reused and added to each year. The breeding season sees a clutch of three to five bluish-green eggs laid, which both parents incubate. Chicks fledge at 7-8 weeks old.

Grey Herons are apex predators within their ecosystem, feeding on a variety of aquatic creatures such as fish, amphibians, crustaceans, and insects. They have also been known to consume small mammals and juvenile birds.

12-9-2018 ALBUFERA, VALENCIA - GREY HERON (Ardea cinerea)

The Grey Heron (Ardea cinerea) is a statuesque wading bird belonging to the family Ardeidae. It is a familiar sight in both rural and urban settings, often seen standing stoically along the water's edge. An adult Grey Heron is a large bird, reaching up to 100 cm in height, with a wingspan between 155 to 195 cm. It weighs between 1 to 2 kg. The plumage is predominantly ashy-grey above, with a greyish-white underbelly and some black on the flanks. A striking feature is the white head and neck adorned with a broad black stripe that extends from the eye to the black crest. The beak is pinkish-yellow, long, and sharply pointed, while the legs are a brown hue.

When identifying the Grey Heron, look for the white head with the black supercilium and crest, the long grey neck, and the ashy-grey wings and back. The underparts are lighter, and the legs are long and brown. Juveniles can be distinguished by their duller grey neck and smaller crest. The beak is a useful indicator of age, being brighter in breeding adults.

12-9-2018 ALBUFERA, VALENCIA - MALLARD (FEMALE) (Anas platyrhynchos)

The mallard (/ˈmælɑːrd, ˈmælərd/) or wild duck (Anas platyrhynchos) is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa. It has been introduced to New Zealand, Australia, Peru, Brazil, Uruguay, Argentina, Chile, Colombia, the Falkland Islands, and South Africa. This duck belongs to the subfamily Anatinae of the waterfowl family Anatidae. Males have green heads, while the females (hens or ducks) have mainly brown-speckled plumage. Both sexes have an area of white-bordered black or iridescent purple or blue feathers called a speculum on their wings; males especially tend to have blue speculum feathers. The mallard is 50–65 cm (20–26 in) long, of which the body makes up around two-thirds the length. The wingspan is 81–98 cm (32–39 in) and the bill is 4.4 to 6.1 cm (1.7 to 2.4 in) long.

It is often slightly heavier than most other dabbling ducks, weighing 0.7–1.6 kg (1.5–3.5 lb). Mallards live in wetlands, eat water plants and small animals, and are social animals preferring to congregate in groups or flocks of varying sizes.

The female lays 8 to 13 creamy white to greenish-buff spotless eggs, on alternate days. Incubation takes 27 to 28 days and fledging takes 50 to 60 days. The ducklings are precocial and fully capable of swimming as soon as they hatch.

The mallard is considered to be a species of least concern by the International Union for Conservation of Nature (IUCN). Unlike many waterfowl, mallards are considered an invasive species in some regions. It is a very adaptable species, being able to live and even thrive in urban areas which may have supported more localised, sensitive species of waterfowl before development. The non-migratory mallard interbreeds with indigenous wild ducks of closely related species through genetic pollution by producing fertile offspring. Complete hybridisation of various species of wild duck gene pools could result in the extinction of many indigenous waterfowl. This species is the main ancestor of most breeds of domestic duck, and its naturally evolved wild gene pool has been genetically polluted by the domestic and feral mallard populations.

12-9-2018 ALBUFERA, VALENCIA - LESSER BLACK BACKED GULL (Larus fuscus)

The lesser black-backed gull (Larus fuscus) is a large gull, distinguishable by its size and the coloration of its plumage. It is smaller than the European herring gull and exhibits a range of mantle colors across its subspecies, from dark grey to jet black.

Adult lesser black-backed gulls have yellow legs and a yellow bill with a red spot. Their wings and back are either black or dark grey, depending on the subspecies. In winter, the head becomes greyer. Juveniles display scaly black-brown upperparts and a distinctive wing pattern. They can be differentiated from juvenile herring gulls by their darker, unbarred tertial feathers.

This species is found along coasts and lakes, where it breeds and feeds. It has adapted to urban environments in some cities, nesting alongside herring gulls.

The lesser black-backed gull breeds on the Atlantic coasts of Europe and is migratory, wintering from the British Isles to West Africa. It has expanded its range to North America, particularly along the east coast, where it is now present year-round in increasing numbers.

These gulls are social birds, breeding colonially. They exhibit a fixed action pattern during feeding, where the young peck at the red spot on the adult's bill to induce regurgitation.

24-11-2016 INLE LAKE, MYANMAR - BLUE THROATED BARBET (Psilopogon asiaticus)

The blue-throated barbet (Psilopogon asiaticus ) is an Asian barbet native to the foothills of the Himalayas and Southeast Asia. It inhabits lowland and montane forests at elevations of 200–2,000 m (660–6,560 ft).It has bright green, blue and red plumage. The barbets get their name from the bristles which fringe their heavy bills; this species eats fruits and insects.

A common inhabitant of lowland and foothill tropical forests, where it sings brightly but often unseen from the canopy; listen for its repeated 3- or 4-syllabled ‘took-o-rrook!’ Tends to be more common in edge areas and degraded forests than other barbets. Bright green with a blue throat, a red-and-yellow crown, and a heavy, pale-based bill. Birds at the northern and western parts of this species’ range have a black brow, while southern birds don’t.

12-9-2018 ALBUFERA, VALENCIA - RED SWAMP CRAYFISH (Procambarus clarkii)

Procambarus clarkii, known variously as the red swamp crayfish, Louisiana crawfish or mudbug, is a species of cambarid crayfish native to freshwater bodies of northern Mexico, and southern and southeastern United States, but also introduced elsewhere (both in North America and other continents), where it is often an invasive pest.

P. clarkii is typically dark red, with long claws and head, small or no spines on the sides of its carapace just below the head, and rows of bright red bumps on the front and side of the first leg.

The native range of P. clarkii is from northern Mexico and far southeastern New Mexico, through the Gulf States to the Florida Panhandle, as well as inland north through the Mississippi Basin to southern Illinois. It has also been introduced, sometimes deliberately, outside its natural range to countries in Asia, Africa, Europe and elsewhere in the Americas. In northern Europe, the populations are self-maintaining but not expanding, while in southern Europe, P. clarkii is multiplying and actively colonizing new territories at the expense of the native crayfish, Astacus astacus and Austropotamobius spp. Individuals are reported to be able to cross many miles of relatively dry ground, especially in wet seasons, although the aquarium trade and anglers may have hastened the spread in some areas (anglers using P. clarkii as fishing bait are thought to have introduced it to the state of Washington). Attempts have also been made to use P. clarkii as a biological control organism, to reduce levels of the snails involved in the lifecycle of schistosomiasis, leading to the dispersal of P. clarkii in, for instance, Kenya.

In Europe, P. clarkii is included since 2016 in the list of Invasive Alien Species of Union concern (the Union list). This implies that this species cannot be imported, bred, transported, commercialized, or intentionally released into the environment in the whole of the European Union.

P. clarkii is most commonly found in warm freshwater bodies such as slow-flowing rivers, marshes, reservoirs, irrigation systems and rice paddies. It is considered to be the most ecologically plastic species in the order Decapoda and is able to grow quickly even in only seasonally present water, being able to tolerate dry spells of up to four months. P. clarkii grows quickly, and is capable of reaching weights over 50 g (1.8 oz) and sizes of 5.5–12 cm (2.2–4.7 in) long. It is also able to tolerate slightly saline water, which is unusual for a crayfish. Additionally, P. clarkii are physiologically capable of tolerating relatively low dissolved oxygen concentrations. The average lifetime of P. clarkii is five years, although some individuals are known to have reached ages (in nature) of over six years.

The burrowing activities of P. clarkii can lead to damage to existing water courses and to crops, particularly rice, and its feeding can disrupt native ecosystems. It may outcompete the native crayfish species and is a vector for the crayfish plague fungus Aphanomyces astaci, for crayfish virus vibriosis and for a number of parasitic worms on vertebrates. Their burrowing activities may also be a threat to civil infrastructure such as storm ponds and levees.

In 2007, troglomorphic specimens of P. clarkii were found in central Portugal in the karst springs of the Rio Anços in the Sicó massif and of the Alviela River in the Estremenho massiff. In 2011, another cave-dwelling population was discovered in caves in the San Giuliano Terme municipality in the Province of Pisa in Italy. Both localities consist of karst landscapes with extensive cave formations. The Portuguese population is entirely depigmented, although pigmented specimens are present in nearby surface streams; the deepest recorded specimen was a male recovered at a depth of 240 metres (790 ft). 53% of Italian specimens displayed a blue-white coloration. The greater presence of pigmented individuals suggests either a more recent entrance, an external source of carotenoids, or movement between surface and underground waters. Collectively, these potations make up the first recorded instances of troglodytic crayfish in Europe. The invasive crayfish have the potential to pose an environmental threat to native stygobitic fauna, due to the crayfish's recorded ability to prey on diverse sources of food and the highly restricted ranges of native cave fauna.

Harvests of P. clarkii for food account for a large majority of the crayfish produced in the United States and elsewhere. Crayfish farming began in Louisiana in the 18th century, taking place in rice fields in a concurrent or alternate culture system. The concurrent polyculture of rice and crayfish combination makes good use of land, resources, equipment and infrastructure already being used for rice production.

However, crayfish production has decreased in recent years due to an increase of imports from China, which is now the world's leading producer of farmed crayfish using a rice-based system. A number of species of crustaceans were introduced to China to create markets for aquaculture and because they are better adapted to growing in a rice field than native fish species. Rice-fish farming originated in China and is once again growing as the yields from Green Revolution practices used to grow rice are no longer increasing, and resources such as land and water are becoming more limited. Crayfish are also cultivated as animal feed for poultry farms, fish farms and Chinese edible frog farms, or used to add into organic fertilizers.

P. clarkii has also been introduced elsewhere for cultivation, such as Spain, where its success is attributable to its ability to colonize disturbed habitats that would be unsuitable for the native crayfish (Astacus astacus). P. clarkii is also marketed by biological supply companies for teaching and research. P. clarkii also exhibits different colour morphs, including white, blue and orange, which are commonly sold in pet stores.

The introduction of P. clarkii has also resulted in economic losses in some regions. In the Baixo Mondego region of Portugal, it caused a decrease in 6.3% of profits in rice fields. However, this was on a wet-seeded field. All negative effects of crayfish can be avoided if adult crayfish are separated from the seed and seedlings.

8-4-2018 THORNYBUSH LODGE, SOUTH AFRICA - VERVET MONKEY (Chlorocebus pygerythrus)

The vervet monkey (Chlorocebus pygerythrus), or simply vervet, is an Old World monkey of the family Cercopithecidae native to Africa. The term "vervet" is also used to refer to all the members of the genus Chlorocebus. The five distinct subspecies can be found mostly throughout Southern Africa, as well as some of the eastern countries. These mostly herbivorous monkeys have black faces and grey body hair color, ranging in body length from about 40 cm (16 in) for females, to about 50 cm (20 in) for males.

In addition to behavioral research on natural populations, vervet monkeys serve as a nonhuman primate model for understanding genetic and social behaviors of humans. They have been noted for having human-like characteristics, such as hypertension, anxiety, and social and dependent alcohol use. Vervets live in social groups ranging from 10 to 70 individuals, with males moving to other groups at the time of sexual maturity. Studies done on vervet monkeys involve their communication and alarm calls, specifically in regard to kin and group recognition, and particular predator sightings.

The vervet monkey ranges throughout much of Southern and East Africa, being found from Ethiopia and extreme southern South Sudan all the way down to South Africa. It is not found west of the East African Rift or the Luangwa River, where it is replaced by the closely related malbrouck (C. cynosuros) species. The vervet monkey inhabits savanna, riverine woodland, coastal forest, and mountains up to 4000 m (13,100 ft). They are adaptable and able to persist in secondary and/or highly fragmented vegetation, including cultivated areas, and sometimes are found living in both rural and urban environments. Annual home range size has been observed to be as high as 176 ha, with an average population density of 54.68 animals/km2.

Vervet monkeys that are naturalised (introduced by humans) are found in Cape Verde, Ascension Island, Saint Helena, St Kitts and Nevis, and Barbados. Dania Beach, Florida, is home to about 40 introduced vervets.

5-4-2018 PHINDA FOREST LODGE, SOUTH AFRICA - NYALA (FEMALE) (Tragelaphus angusii)

The nyala (Tragelaphus angasii) is a spiral-horned antelope native to southern Africa. It was first described in 1849 by George French Angas. They are very shy cautious creatures. They inhabit thickets within dense and dry savanna woodlands and forage during the daylight hours. The main predators of the nyala are lion, leopard, and Cape hunting dog, while baboons and raptorial birds prey on juveniles.

The coat of the nyala is rusty or rufous brown in females and juveniles. It grows a dark brown or slate grey in adult males, often with a bluish tinge. Females and young males have ten or more white vertical stripes on their sides. Other markings are visible on the face, throat, flanks, and thighs. Stripes are very reduced or absent in older males. Both males and females have a white chevron between their eyes and a bushy tail white underside. Both sexes have a dorsal crest of hair running right from the back of the head to the end of the tail. Males have another line of hair along the midline of their chest and belly. Only the males have horns. Horns are 60-83 cm (24-33 in) long and yellow-tipped. There are one or two twists. The spoor is similar to that of the bushbuck, but larger. It is 5-6 cm (2-2.4 in) long. The nyala has hairy glands on its feet, which leave their scent wherever it walks.

Nyala are found across southeast Africa from the Lower Shire Valley in Malawi through Mozambique and Zimbabwe to eastern South Africa and Swaziland. They inhabit dense lowland woodlands, thickets, and lush green river country. They choose places with good quality grasslands as well as the provision of fresh water.

5-4-2018 PHINDA GAME RESERVE, SOUTH AFRICA - PIN TAILED WHYDAH (Vidua macroura)

The Pin-tailed Whydah, Vidua macroura, presents a striking figure, particularly the male during breeding season with his elongated tail feathers that trail behind him like a banner. This small songbird is a resident breeder across much of Africa, south of the Sahara Desert.

In breeding plumage, the male Pin-tailed Whydah is unmistakable with his black back and crown, and a tail that extends an additional 20 centimeters beyond his 12-13 centimeter body. His wings are dark brown with white patches, and his underparts and head, save for the crown, are white. A bright red bill completes his bold attire. Females and non-breeding males are more subdued, with streaked brown upperparts, whitish underparts with buff flanks, and a buff and black face pattern. They lack the long tail but retain the red bill, while immature birds are similar to the female but plainer with a greyish bill.

The Pin-tailed Whydah is found in grasslands, scrubs, and savannahs, and is also known to frequent parks and gardens within its range.

This species is widespread in sub-Saharan Africa. It has also established populations in Portugal, particularly around Aveiro, and has been introduced to southern California, Puerto Rico, and Singapore.

The male Pin-tailed Whydah is known for his territorial nature and elaborate courtship displays, which include an impressive flight pattern to showcase his tail to potential mates. He often has several females within his territory. The species is a brood parasite, laying its eggs in the nests of estrildid finches, particularly waxbills, without harming the host's eggs. The nestling whydahs mimic the gape pattern of the host species' fledglings.

The male's song, performed from a high perch, is a series of rapid squeaks and churring sounds, forming part of his courtship ritual.

The Pin-tailed Whydah's diet consists primarily of seeds and grain, which it forages from the ground.

6-4-2018 PHINDA GAME RESERVE, SOUTH AFRICA - COMMON WARTHOG (Phacochoerus Africus)

The Common warthog (Phacochoerus africanus) is a wild member of the pig family (Suidae) found in sub-Saharan Africa. It is the only pig species that has adapted to grazing and savanna habitats.

A warthog has two pairs of tusks protruding from the mouth and curving upwards. The lower pair, which is far shorter than the upper pair, becomes razor-sharp by rubbing against the upper pair every time the mouth is opened and closed. The upper canine teeth can grow to 25.5 cm (10.0 in) long and have a wide elliptical cross-section, being about 4.5 cm (1.8 in) deep and 2.5 cm (0.98 in) wide. A tusk will curve 90° or more from the root, and will not lie flat on a table, as it curves somewhat backward as it grows. The tusks are not used for digging, but are used for combat with other hogs and in defense against predators - the lower set can inflict severe wounds. Common warthog ivory is taken from the constantly growing canine teeth. The tusks, particularly the upper set, work in much the same way as elephant tusks with all designs scaled down. Tusks are carved predominantly for the tourist trade in eastern and southern Africa. The head of the Common warthog is large, with a mane down the spine to the middle of the back. Sparse hair covers the body. Its color is usually black or brown. Tails are long and end with a tuft of hair. Common warthogs do not have subcutaneous fat and the coat is sparse, making them susceptible to extreme environmental temperatures.

22-4-2018 OKAVANGO DELTA, BOTSWANA - VERREAUX'S EAGLE OWL (Bubo lacteus)

The Verreaux's eagle-owl (Ketupa lactea), also known as the milky eagle owl or giant eagle owl, is a formidable presence in the avian world. As the largest owl found in Africa and the most massive in the tropics, it commands attention with its impressive stature. This species can reach up to 66 cm (26 in) in total length, with females typically out-sizing males. Its plumage is primarily a soft grey, with fine brownish vermiculations on the underside and more solid light brown with white spots on the shoulder. The facial disc is paler, often whitish, with stark black borders. However, its most distinctive feature is the bright pink eyelids, unique among owl species.

When observing Verreaux's eagle-owl, look for its large size, grey plumage, and the striking pink eyelids that are visible when the bird is at rest. The ear tufts are relatively small and may not be noticeable at a distance. The eyes are a deep brown, contrasting with the paler facial disc. In flight, its large wingspan is evident, which can reach nearly 164 cm (5 ft 5 in) in females.

Verreaux's eagle-owl favors dry, wooded savanna environments, often bordering semi-arid regions. It can also be found in riverine forests adjacent to savannas and in small, semi-open woodlands. This species is adaptable to various elevations, from sea level to mountainous areas up to 3,000 m (9,800 ft), though it is generally scarce in rocky terrains.

This eagle-owl is widespread across sub-Saharan Africa, with the highest densities in eastern and southern Africa. It is less common in the dense rainforests of west and central Africa, with a sporadic presence in transitional zones between the Sahara and rainforests.

Nocturnal by nature, Verreaux's eagle-owls spend their days roosting in trees, often on large horizontal branches. They are known to roost lightly, awakening quickly to defend themselves if necessary. Family groups, including offspring from previous years, may roost and preen together. Each pair defends a large territory, which can be up to 7,000 ha (17,000 acres) in size.

The call of the Verreaux's eagle-owl is the deepest among owls, with the male's song resembling a series of deep "gwok" sounds. The female's call is similar but higher-pitched. Their vocalizations can carry for considerable distances, facilitating communication between mates and territorial defense.

Verreaux's eagle-owls are monogamous and likely mate for life. They typically use large stick nests built by other birds, often on top of hamerkop nests or those constructed by large raptors. The female usually lays two white eggs, with the older chick often outcompeting the younger for food. Fledglings leave the nest before they can fly competently and remain dependent on their parents for several months.

Verreaux's eagle-owl is an opportunistic predator with a diet that includes mammals, birds, reptiles, amphibians, and insects. It is known to be the only routine predator of hedgehogs in Africa, skillfully removing their prickly skins before consumption.

The IUCN lists Verreaux's eagle-owl as Least Concern due to its wide range and adaptability to habitat alterations. However, it occurs at low densities, and regional declines have been reported due to habitat destruction, persecution, and the effects of pesticides.

4-4-2018 PHINDA GAME RESERVE, SOUTH AFRICA - COMMON IMPALA (FEMALE) (Aepyceros melampus ssp. melampus)

The impala or rooibok (Aepyceros melampus, lit. 'black-footed high-horn' in Ancient Greek) is a medium-sized antelope found in eastern and southern Africa. The only extant member of the genus Aepyceros, and tribe Aepycerotini, it was first described to Europeans by German zoologist Hinrich Lichtenstein in 1812. Two subspecies are recognised—the grassland-dwelling common impala (sometimes referred to as the Kenyan impala), and the larger and darker black-faced impala, which lives in slightly more arid, scrubland environments. The impala reaches 70–92 cm (28–36 in) at the shoulder and weighs 40–76 kg (88–168 lb). It features a glossy, reddish brown coat. The male's slender, lyre-shaped horns are 45–92 cm (18–36 in) long.

4-4-2018 PHINDA FOREST LODGE, SOUTH AFRICA - MOCKING CLIFF-CHAT (MALE) (Thamnolaea cinnamomeiventris)

The mocking cliff chat (Thamnolaea cinnamomeiventris) presents a striking figure in the avian world. Males boast a glossy black plumage contrasted with a chestnut belly, vent, and rump, and are adorned with white shoulder patches whose size may vary across their range. Females, on the other hand, wear a more subdued dark grey with a chestnut lower breast, belly, and vent. These robust chats measure between 19–21 cm in length and tip the scales at a modest 41–51 grams.

When identifying the mocking cliff chat, look for the male's distinctive white shoulder patches and glossy black feathers, alongside the chestnut underparts. Females can be discerned by their grey plumage with chestnut coloring on the lower regions. Their tail-wagging behavior is also a helpful cue, as they tend to slowly raise it over their backs and fan it out.

This species is a connoisseur of rocky terrains, favoring boulder-strewn areas, wooded ravines, cliffs, gullies, and hillsides. They are also known to frequent watercourses in valley bottoms that are dotted with scattered rocks.

The mocking cliff chat is found in a neat band stretching from central Ethiopia through East Africa into Zimbabwe, southeastern Botswana, southern Mozambique, and eastern South Africa, reaching as far as the far east of Western Cape province.

The mocking cliff chat (Thamnolaea cinnamomeiventris) presents a striking figure in the avian world. Males boast a glossy black plumage contrasted with a chestnut belly, vent, and rump, and are adorned with white shoulder patches whose size may vary across their range. Females, on the other hand, wear a more subdued dark grey with a chestnut lower breast, belly, and vent. These robust chats measure between 19–21 cm in length and tip the scales at a modest 41–51 grams.

When identifying the mocking cliff chat, look for the male's distinctive white shoulder patches and glossy black feathers, alongside the chestnut underparts. Females can be discerned by their grey plumage with chestnut coloring on the lower regions. Their tail-wagging behavior is also a helpful cue, as they tend to slowly raise it over their backs and fan it out.

This species is a connoisseur of rocky terrains, favoring boulder-strewn areas, wooded ravines, cliffs, gullies, and hillsides. They are also known to frequent watercourses in valley bottoms that are dotted with scattered rocks.

The mocking cliff chat is found in a neat band stretching from central Ethiopia through East Africa into Zimbabwe, southeastern Botswana, southern Mozambique, and eastern South Africa, reaching as far as the far east of Western Cape province.

The mocking cliff chat is primarily insectivorous but has a diverse palate that includes fruit and nectar from plants like the Krantz aloe (Aloe arborescens). They exhibit a foraging technique that involves pouncing on ground prey from a perch and will also glean food from branches and foliage.

The species is known for its loud, fluty, melodious warbling song, which is a medley of rapid-fire phrases that mimic other birds, interspersed with some harsher tones.

Both sexes are involved in nest building, which takes about a week to complete. The nest is an open cup built upon a foundation of twigs, leaves, roots, and feathers, and lined with mammal hair. They are known to usurp the nests of striped swallows, often evicting them mid-use. Nests are typically sheltered by rock overhangs, bridges, culverts, or caves, and sometimes placed in wall holes or agricultural machinery cavities. In southern Africa, egg-laying occurs from August to December, peaking between September and November. Clutches usually contain 2-4 eggs, incubated by the female for 14–16 days. Both parents feed the chicks, which fledge at about three weeks old.

The white-crowned cliff chat (Thamnolaea coronata) of West Africa is sometimes considered conspecific with the mocking cliff chat.

The mocking cliff chat's diet is mainly composed of insects, supplemented by fruits and nectar from aloes. Their foraging behavior is characterized by perching and pouncing, as well as gleaning from foliage.

The mocking cliff chat is currently listed as Least Concern on the IUCN Red List, indicating that, for now, this species does not face immediate threats to its survival.

15-4-2018 CHOBE NATIONAL PARK, SOUTH AFRICA - GARDEN INSPECTOR (Precis archesia)

Precis archesia, the garden inspector or garden commodore, is a species of butterfly in the Nymphalidae family, native to Subsaharan Africa.

The Garden Commodore, or Garden Inspector, is a familiar butterfly occurring year round in South Africa, having quite distinctly marked dry season (April to August) and wet season (September to March) variations that could easily be taken to be altogether different species. Females are bigger than the males and at 6cm their wingspan is at least 1cm wider than that of the males. With their wings closed Garden Commodores, especially the dry season form, resemble dead leaves.

As their name suggests, the Garden Inspector is commonly seen in well planted gardens, but their natural habitat is rocky, grass- and savanna-covered hills. They are fast flyers and often land in the open, on bare ground, rocks or pathways. In South Africa they are found from the Eastern Cape, through Kwazulu-Natal into the Lowveld and Bushveld regions of the country.

20-4-2018 OKAVANGO DELTA, BOTSWANA - AFRICAN LION (FEMALE) (Panthera leo)

The lion (Panthera leo) is a large cat of the genus Panthera, native to Africa and India. It has a muscular, broad-chested body; a short, rounded head; round ears; and a dark, hairy tuft at the tip of its tail. It is sexually dimorphic; adult male lions are larger than females and have a prominent mane. It is a social species, forming groups called prides. A lion's pride consists of a few adult males, related females, and cubs. Groups of female lions usually hunt together, preying mostly on medium-sized and large ungulates. The lion is an apex and keystone predator.