Wednesday, 30 August 2017
Monday, 28 August 2017
28-8-2017 VILLALONGA RESERVOIR, VALENCIA - SQUACCO HERON (Ardeola ralloides)
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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 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.
28-8-2017 VILLALONGA RESERVOIR, VALENCIA - LITTLE EGRET (Egretta garzetta)
With its yellow feet, which are used to flush prey when feeding in shallow water, the Little Egret is a distinctive member of the heron family.
Little Egrets first bred in Britain in 1996 and since then have successfully colonised much of southern Britain and Ireland. Most of the breeding colonies have been established within existing Grey Heron colonies, the two species nesting alongside one another.
The winter distribution is also currently restricted to the southern half of Britain & Ireland, despite the fact that young birds are known to move some distance from their natal site.
28-8-2017 VILLALONGA RESERVOIR, VALENCIA - GREY HERON (Ardea cinerea)
The Grey heron (Ardea cinerea) is a large long-legged wading bird of the heron native to Europe and Asia and also parts of Africa. It lives in wetland areas and feeds on various aquatic creatures which it catches after standing stationary beside or in the water.
The plumage of the Grey heron is largely ashy-grey above, and greyish-white below with some black on the flanks. Adults have a head and neck white with a broad black supercilium that terminates in the slender, dangling crest, and bluish-black streaks on the front of the neck. The scapular feathers are elongated and the feathers at the base of the neck are also somewhat elongated. Immature birds lack the dark stripe on the head and are generally duller in appearance than adults, with a grey head and neck, and a small, dark grey crest. The pinkish-yellow beak is long, straight, and powerful, and is brighter in color in breeding adults. The iris is yellow and the legs are brown and very long.
Grey herons occur in most parts of Europe, Asia, and Africa. Over much of their range, these birds are resident, but populations from the more northerly parts of Europe migrate southwards; some remain in Central and Southern Europe, and others travel on to Africa south of the Sahara Desert. Grey herons can be found anywhere with suitable watery habitats that can supply their food. Although most common in the lowlands, they also occur in mountain tarns, lakes, reservoirs, large and small rivers, marshes, ponds, ditches, flooded areas, coastal lagoons, estuaries, and seashore. They sometimes forage away from water in the pasture, and can even be found in desert areas, hunting for beetles and lizards.
28-8-2017 RIO SERPIS VILLALONGA, VALENCIA - EPAULET SKIMMER DRAGONFLY (Orthetrum chrysostigma)
Orthetrum chrysostigma, the epaulet skimmer, is a species of dragonfly in the family Libellulidae. It is found in Algeria, Angola, Benin, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, the Democratic Republic of the Congo, Ivory Coast, Egypt, Equatorial Guinea, Ethiopia, Gambia, Ghana, Guinea, Kenya, Liberia, Libya, Malawi, Mali, Mauritania, Morocco, Mozambique, Namibia, Niger, Nigeria, Senegal, Sierra Leone, Somalia, South Africa, Sudan, Tanzania, Togo, Uganda, Zambia, Zimbabwe, and possibly Burundi as well as Canary Islands, Israel, and Portugal. It was recorded in the Maltese Islands in 2010. One was also spotted in Tel Aviv, Israel in August 2022.
Its natural habitats are subtropical or tropical moist lowland forests, dry savanna, moist savanna, subtropical or tropical dry shrubland, subtropical or tropical moist shrubland, rivers, intermittent rivers, shrub-dominated wetlands, swamps, freshwater lakes, intermittent freshwater lakes, freshwater marshes, intermittent freshwater marshes, and freshwater springs. The adults prey on various flying insects. The bodies of adult males are blue, and those of young and females are yellow and brown.
14-8-2017 AMSTERDAM ZOO, NETHERLANDS - ZENAIDA DOVE (Zenaida aurita)
The zenaida dove (Zenaida aurita) is a member of the bird family Columbidae, which includes doves and pigeons. It is the national bird of Anguilla, where it is locally referred to as "turtle dove".
The Zenaida dove is approximately 28–30 cm (11–12 in) in length. It looks very similar to the mourning dove, but is smaller in size, has a shorter, more rounded tail, and is a bit more darkly colored. It is also distinguished from the mourning dove by showing white on the trailing edge of its wings while in flight. The mourning dove does not have the white trailing edge.
It lays two white eggs on a flimsy platform, built on a tree or shrub. It also nests in rock crevices, and on grassy vegetation if no predators are present. It has been recorded that some birds have up to 4 broods per year. Eggs take approximately two weeks to hatch, and the young chicks typically fledge after only two weeks in the nest. Parents feed the young pigeon's milk, a nutrient rich substance regurgitated from its crop.
The Zenaida dove breeds throughout the Caribbean and the tip of the Yucatán Peninsula, an example habitat being in the Petenes mangroves. It was reported by John James Audubon to breed in the Florida Keys, but there are only three verifiable records from Florida. It is found in a variety of open and semi-open habitats. Its mournful cooOOoo-coo-coo-coo call is similar to the call of a mourning dove, but faster in pace.
The bird is resident and abundant over much of its range. Zenaida doves are commonly hunted as a game bird.
These birds forage on the ground, mainly eating grains and seeds, sometimes also on insects. Zenaida doves frequently feed close to water. They often swallow fine gravel to assist with digestion, and will also ingest salt from mineral rich soils or livestock salt licks. It is thought the salt aids in egg formation and/or production of pigeon milk.
Sunday, 27 August 2017
27-8-2017 VILLALONGA RESERVOIR, 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.
The Grey Heron can be confused with the larger North American Great Blue Heron or the South American Cocoi Heron. However, it can be distinguished by its size and the coloration of its flanks and thighs.
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.
The Grey Heron is classified as Least Concern by the IUCN, indicating a stable and widespread population.
27-8-2017 VILLALONGA RESERVOIR, VALENCIA - COPPER DEMOISELLE DAMSELFLY (FEMALE) (Calopteryx haemorrhoidalis)
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Calopteryx haemorrhoidalis is a species of damselfly in the family Calopterygidae known by the common names copper demoiselle and Mediterranean demoiselle.
This species is native to the western Mediterranean Basin in Europe (Iberia, southern France, Italy, Monaco) and North Africa (Algeria, Morocco, Tunisia). It is common in much of its range.
It lives along rivers and streams, but also in sunny larger waters. Though it may be affected by habitat changes such as water pollution.
Calopteryx haemorrhoidalis can reach a body length of about 45–48 millimetres (1.8–1.9 in). The abdomen length is of about 34–43 millimetres (1.3–1.7 in) in males, of 31–43 millimetres (1.2–1.7 in) in females. The length of the wings is of 23–32 millimetres (0.91–1.26 in) in males, of 25–37 millimetres (0.98–1.46 in) in the females.
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The males have a dark, metallic shining body, the color of which can be red-violet, golden or copper-colored. On the underside of the last three abdominal segments there red area, the so-called "red lantern" (hence the Latin species name haemorrhoidalis, meaning "blood flow").[6] The wings of males show a large dark area, while the females have a brown band to the wing tip and a metallic-green to bronze-colored body, with a brown belt on the back.
The flight time of this species ranges from May to September. The males have a characteristic mating dance, showing the abdomen end and spreading their wings wide. The male of this species is territorial, defending sites where females may choose to lay eggs.
This species can hybridize with Calopteryx splendens.
27-8-2017 PEGO MARJAL, ALICANTE - EURASIAN REED WARBLER (Acrocephalus scirpaceus)
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The Eurasian reed warbler, or just reed warbler (Acrocephalus scirpaceus ), is an Old World warbler in the genus Acrocephalus. It breeds across Europe into the temperate western Palaearctic. It is migratory, wintering in sub-Saharan Africa.
This is a medium-sized warbler, 13 cm (5.1 in) in length with a wing-span of 17–21 cm (6.7–8.3 in). The adult has an unstreaked brown back and buff underparts. The forehead is flattened, and the bill is strong and pointed. The sexes are identical, as with most warblers, but young birds are richer buff below. The Eurasian reed warbler looks similar to the great reed warbler, but the great reed warbler is larger in size and has a stronger supercilium.
The song is a slow, chattering jit-jit-jit with typically acrocephaline whistles and mimicry added.
This small passerine bird is a species found almost exclusively in reed beds, usually with some bushes.
27-8-2017 PEGO MARJAL, ALICANTE - EUROPEAN MOORHEN (Gallinula chloropus)
The common moorhen, known scientifically as Gallinula chloropus, is a bird of the rail family, Rallidae. It is a bird of striking appearance, with a mix of black and brown plumage, a white under-tail, and white streaks along its flanks. Its legs are a vibrant yellow, and it sports a distinctive red frontal shield. The bill is a matching red with a yellow tip. Juveniles are a duller brown and do not have the red shield.
Adult moorhens can be identified by their red frontal shield, which has a rounded top and fairly parallel sides. The tailward margin of the red unfeathered area is smoothly curved. Their yellow legs and the combination of their black and brown plumage with white markings make them quite distinctive. The young are browner and lack the red shield, making them less conspicuous.
The common moorhen is found in a variety of wetland habitats, including marshes, ponds, canals, and lakes that are rich in vegetation. It is also known to inhabit city parks with suitable water bodies.
This species has a broad distribution across many parts of the Old World. It is not found in polar regions or many tropical rainforests but is otherwise widespread, often being the most common rail species in its range.
Moorhens are known for their secretive nature but can become quite tame in certain areas. They exhibit territorial behavior during the breeding season and are known to aggressively defend their territory against intruders.
The common moorhen emits a variety of gargling calls and will hiss loudly when threatened.
Breeding season sees moorhens becoming territorial. They construct a basket-like nest on the ground within dense vegetation. Egg-laying typically begins in spring, with clutches ranging from 5 to 8 eggs. Both parents are involved in incubation and rearing the young, which fledge after 40-50 days.
The common gallinule (Gallinula galeata) of the Americas is closely related but can be distinguished by the shape of its frontal shield and the coloration of its plumage.
Moorhens have a varied diet that includes vegetable matter and small aquatic organisms. They forage in and around water bodies, sometimes upending in the water or walking on lilypads to feed.
Globally, the common moorhen is abundant and classified as Least Concern by the IUCN. However, localized populations may be vulnerable to extinction due to habitat loss and hunting.
27-8-2017 PEGO MARJAL, ALICANTE - LITTLE EGRET (Egretta garzetta)
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The little egret (Egretta garzetta) is a species of small heron in the family Ardeidae. It is a white bird with a slender black beak, long black legs and, in the western race, yellow feet. As an aquatic bird, it feeds in shallow water and on land, consuming a variety of small creatures. It breeds colonially, often with other species of water birds, making a platform nest of sticks in a tree, bush or reed bed. A clutch of three to five bluish-green eggs is laid and incubated by both parents for about three weeks. The young fledge at about six weeks of age.
Its breeding distribution is in wetlands in warm temperate to tropical parts of Europe, Africa, Asia, and Australia. A successful colonist, its range has gradually expanded north, with stable and self-sustaining populations now present in the United Kingdom.
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Little egrets are sociable birds and are often seen in small flocks. They are diurnal birds and feed mainly in the early morning and in the late afternoon. They use a variety of methods to procure their food; they stalk their prey in shallow water, often running with raised wings or shuffling their feet to disturb small fish, or may stand still and wait to ambush prey. Little egrets also make use of opportunities provided by cormorants disturbing fish or humans attracting fish by throwing bread into the water. On land, they walk or run while chasing their prey, feed on creatures disturbed by grazing livestock and ticks on the livestock, and even scavenge occasionally. Little egrets are silent birds in general, however, at their breeding colonies, they make various croaking and bubbling calls. When disturbed, they produce a harsh alarm call.
27-8-2017 PEGO MARJAL, ALICANTE - COMMON DARTER DRAGONFLY (MALE) (Sympetrum striolatum)
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The common darter (Sympetrum striolatum) is a dragonfly of the family Libellulidae native to Eurasia. It is one of the most common dragonflies in Europe, occurring in a wide variety of water bodies, though with a preference for breeding in still water such as ponds and lakes. In the south of its range adults are on the wing all year round.
Sympetrum species are not easy to tell apart and in most areas more than one Sympetrum species will occur. Females and teneral individuals have light yellow thorax and abdomen. Males turn red as they mature. Females darken with age, becoming a dark chocolate brown, and sometimes develop a blue colouration to the bottom of the abdomen. The wings also develop a brown tinge with age. In all cases the legs have a cream or yellow stripe on a black background - this is a diagnostic feature of this species. The pterostigma of the females can be red, blue, pale blue or brown.
27-8-2017 PEGO MARJAL, ALICANTE - YELLOW WINGED DARTER DRAGONFLY (Sympetrum flaveolum)
Yellow-throated longclaws typically thrive in dry savannas, tropical or subtropical flooded or seasonally-wet medium grassland, or along sandy shores. However, they may also move to burnt or grazed grassland locations.
The yellow-winged darter (Sympetrum flaveolum) is a dragonfly found in Europe and mid and northern China.[citation needed] Breeding is confined to stagnant water, usually in peat bogs. Although not resident in the United Kingdom it occasionally migrates there in some numbers. Such 'Invasion Years' occurred in 1906, 1926, 1945, 1953, and 1995. On each occasion a small breeding colony appeared, but they have invariably died out after a few years.
An almost unmistakable darter, red-bodied in the male, with both sexes having large amounts of saffron-yellow colouration to the basal area of each wing, which is particularly noticeable on the hind-wings. Other Sympetrum species may have limited yellow-orange colouration near the extreme wing-bases, especially in females, but never so extensively as in this species.
Sites which are likely to attract this species have thick rushy margins. The yellow-winged darter tends to make quite short flights when settled at a site, and frequently perches quite low down on vegetation.
The yellow-winged darter has bred but is not established in the UK. It has occurred in Cumbria as single individuals on very few occasions. The most recent record was at Killington Reservoir in August 1995.
In Southern Europe, the nymphs of this dragonfly live in oligotrophic lakes with submerged vegetation, at high altitudes. Temperature and vegetation of these habitats are likely to be altered by Climate Change. As an abundant predator the species has an important role in food webs of high altitude lakes. Its disappearance will lead to changes in food webs.
27-8-2017 PEGO MARJAL, ALICANTE - WESTERN CATTLE EGRET (Bubulcus ibis ssp. ibis)
The Cattle egret (Bubulcus ibis) is a cosmopolitan species of heron named for its association with cattle. It is the only member of the monotypic genus Bubulcus, although some authorities regard its two subspecies as full species, the Western cattle egret and the Eastern cattle egret. Despite the similarities in plumage to the egrets of the genus Egretta, it is more closely related to the herons of Ardea.
The Cattle egret is a stocky bird. It has a relatively short, thick neck, a sturdy bill, and a hunched posture. The nonbreeding adult has mainly white plumage, a yellow bill, and greyish-yellow legs. During the breeding season, adults of the nominate western subspecies develop orange-buff plumes on the back, breast, and crown, and the bill, legs, and irises become bright red for a brief period prior to pairing. The sexes are similar, but the male is marginally larger and has slightly longer breeding plumes than the female; juvenile birds lack coloured plumes and have a black bill.
Cattle egrets are native to parts of Asia, Africa, and Europe but they have undergone a rapid expansion in their distribution and successfully colonized much of the rest of the world in the last century. Many populations of Cattle egrets are highly migratory, while others are dispersive, and distinguishing between the two can be difficult. In many areas, populations can be both sedentary and migratory. In the Northern Hemisphere, migration is from cooler climes to warmer areas, but Cattle egrets nesting in Australia migrate to cooler Tasmania and New Zealand in the winter and return in the spring. Migration in western Africa is in response to rainfall, and in South America, migrating birds travel south of their breeding range in the non-breeding season. Populations in southern India appear to show local migrations in response to the monsoons. Cattle egrets inhabit wetlands, dry grassy habitats, semi-arid steppes, floodplains, freshwater swamps, shallow marshes, and mangroves. They are often found in fields, croplands, and pastures with poor drainage. When nesting, Cattle egrets are found in woodlands near lakes or rivers, in swamps, or on small inland or coastal islands.
Saturday, 26 August 2017
25-8-2017 MONTE CORONA, VALENCIA - ARMOURED GROUND CRICKET (Subfamily Bradyporinae)
The Ephippigerini are a tribe of bush crickets in the subfamily Bradyporinae, erected by Brunner von Wattenwyl in 1878. Species have been recorded from mainland Europe (not the British Isles or Scandinavia), North Africa and the Horn of Africa.
