15-4-2018 CHOBE RIVER, NAMIBIA - SOUTHERN CARMINE BEE-EATER (Merops nubicoides)

The Southern Carmine Bee-eater, known scientifically as Merops nubicoides, is a vibrant avian spectacle. Its plumage is predominantly a rich carmine, with a contrasting blue crown and undertail, creating a striking visual display.

To identify this species, look for its vivid carmine red coloring, which is complemented by a blue crown and undertail. The bird's slender and streamlined body, typical of bee-eaters, aids in its agile flight.

These birds are commonly found in low-altitude river valleys and floodplains. They show a preference for vertical banks, which are essential for their breeding habits, as they tunnel into these banks to create their nests.

The Southern Carmine Bee-eater graces the skies from KwaZulu-Natal and Namibia to Gabon, eastern Democratic Republic of the Congo, and Kenya. It is a migratory bird, breeding in Zimbabwe and Zambia from August to November, then moving to South Africa during the summer months, and finally migrating to Equatorial Africa from March to August.

This species is highly sociable, often seen in large flocks. They roost communally in trees or reedbeds and disperse widely during the day. Their agility is showcased as they hawk flying insects from perches or even while following large animals or vehicles to catch prey disturbed by these moving entities.

Breeding occurs at the end of a 1 to 2-meter long burrow in an earthen bank, where they lay a clutch of 2 to 5 eggs. These birds are known for their communal nesting habits, often seen digging vertical burrows in the level surface of small salt islands.

Their diet primarily consists of bees and other flying insects. They employ a hunting strategy known as hawking, where they catch insects in flight from a perch. They are also known to follow wildfires and larger animals to feed on insects that are flushed out in such scenarios.

The Southern Carmine Bee-eater is currently listed as Least Concern on the IUCN Red List, indicating that, at present, there are no immediate threats to its population numbers.

17-4-2018 CHOBE RIVER, NAMIBIA - BLUE CHEEKED BEE-EATER (Merops persicus)

The blue-cheeked bee-eater, Merops persicus, is a near passerine bird belonging to the bee-eater family, Meropidae. This slender and richly coloured species is predominantly green, with distinctive blue cheeks framed by a black eye stripe. A yellow and brown throat complements its striking face, and a black beak punctuates its elegant profile. Adults can reach a length of 31 cm (12 inches), with elongated central tail feathers adding an extra 7 cm (2.8 inches). Both sexes are similar in appearance, though females have slightly shorter tail streamers.

When identifying the blue-cheeked bee-eater, look for its vibrant green plumage and the characteristic blue on the sides of its face. The black eye stripe and contrasting yellow and brown throat are also key features. In flight, observe for the long central tail feathers that trail behind.

15-4-2018 CHOBE RIVER, NAMIBIA - 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.

15-4-2018 CHOBE RIVER, NAMIBIA - ALLEN'S GALLINULE (Porphyrio alleni)

The Allen's gallinule, formerly known as the lesser gallinule, is a diminutive and vibrant waterbird belonging to the Rallidae family. It exhibits a striking combination of colors with a short red bill, a greenish back, and rich purple upperparts. The legs are a vivid red, equipped with long toes, and the tail is short, displaying a white underside with a contrasting dark central bar.

Adult Allen's gallinules can be identified by their red bill and legs, and the males are distinguished by a blue frontal shield during the breeding season, which turns green in females. Immature birds are sandy brown with a buff undertail, while the downy chicks are uniformly black, a common trait among rails. When swimming, these birds exhibit a characteristic nodding of the head.

The preferred breeding habitat for Allen's gallinule is marshes and lakes within the Sub-Saharan African region, where they find the dense swamps particularly conducive to their secretive lifestyle.

This species is indigenous to Sub-Saharan Africa. Despite being seemingly weak fliers, they have astonishingly reached Great Britain twice and have been recorded as vagrants in several other European countries.

Allen's gallinules are notably secretive during the breeding season, often heard rather than seen. They are known for their sharp nasal "pruk" call. The species is partially migratory, engaging in seasonal movements which may render them more visible during migration or in their wintering grounds.

In the breeding season, these gallinules construct a floating nest within marshes and swamps, laying a clutch of 2 to 5 eggs. Their secretive nature is most pronounced during this time, making them elusive to observers.

15-4-2018 CHOBE RIVER, NAMIBIA - YELLOW BILLED STORK (Mycteria ibis)

16-4-2018 CHOBE NATIONAL PARK, BOTSWANA - REED (LONG TAILED) CORMORANT (Microcarbo africanus)

15-4-2018 CHOBE RIVER, NAMIBIA - WOODLAND KINGFISHER (Burhinus vermiculatus)

15-4-2018 CHOBE RIVER, NAMIBIA - CHACMA BABOON (Papio ursinus)

15-4-2018 CHOBE RIVER, NAMIBIA - CHACMA BABOON (JUVENILE) (Papio ursinus)

The Chacma baboon (Papio ursinus) is a member of the Old World monkey family. It is one of the largest of all monkeys. Located primarily in southern Africa, the chacma baboon has a wide variety of social behaviors, including a dominance hierarchy, collective foraging, adoption of young by females, and friendship pairings. In general, the species is not threatened, but hunting, trapping, and accidents kill or remove many baboons from the wild, thereby reducing their numbers and disrupting their social structure.

The Chacma baboon is perhaps the longest species of monkey and it is also one of the heaviest. Adult males can in some instances be about twice as long and three times as heavy as adult females. Perhaps the most distinctive feature of this baboon is its long, downward-sloping face. The Chacma baboon is generally dark brown to gray in color, with a patch of rough hair on the nape of its neck. Unlike the males of northern baboon species (Guinea, hamadryas, and Olive baboons), Chacma males do not have a mane. The three subspecies are differentiated by size and color. The Cape chacma is a large, heavy, dark-brown, and has black feet. The Gray-footed chacma is slightly smaller than the Cape chacma, lighter in color and build, and has gray feet. The Ruacana chacma generally appears to be a smaller, less darkly colored version of the Cape chacma.

Chacma baboons are found throughout southern Africa, ranging from South Africa north to Angola, Zambia, and Mozambique. They live in diverse habitats from woodlands to savannas, steppes, and sub-deserts. Chacma baboons are found in the Kalahari Desert as well as on the alpine slopes of the Drakensberg. They usually sleep on hills, cliffs, or large trees and during the day, avoid arid areas with a lack of water.

Chacma baboons are diurnal, spending most of the day on the ground. They are highly sociable animals, living in troops, which consist of 20-80 individuals. The troops include males as well as females with their young. Members of a troop are in close ties with each other, sleeping, feeding, and grooming together. During the day the groups split into smaller subgroups, consisting of 4-5 females with their young and a dominant male, who leads the group and defends it from other males. They are always on the alert, living in troops for protection and watching for predators. When threatened, the baboons give out loud barks. Then the males run to attack while the females and young hide in a safe place among the trees. Chacma baboons communicate by vocalizations, using about 30 different sounds such as grunting, barking, or screaming. They also use gestures such as shoulder shrugs, yawns, or lip-smacking.

Chacma baboons have polygynandrous (promiscuous) mating system. The dominant male of a subgroup competes with other males for mating rights, though females of baboons mate with a number of males during their lives. They breed at any time of the year. The gestation period lasts about six months, yielding a single baby. The newborn infant clings onto its mother’s breast, grabs onto her fur and later rides on her back. The baby is weaned at the age of 8-12 months. By this time, females keep on living within the troop while males usually join another troop. Males become reproductively mature at 5 years old whereas females are mature at 3 years old.

17-4-2018 CHOBE NAT PARK, BOTSWANA - BLACKSMITH LAPWING (Vanellus armatus)

The Blacksmith Lapwing, known scientifically as Vanellus armatus, is a striking bird with a bold pattern of black, grey, and white, which may serve as a warning to predators. Its red eyes are a distinctive feature, shared with only four other lapwing species across the globe. Adorning the wrist joint is a carpal spur, a sharp black protrusion used in defense of their young, with aggressive aerial dives often aimed at the heads of intruders.

When identifying the Blacksmith Lapwing, look for its red eyes and the contrasting pied plumage. The bill and portions of the legs are black, with the legs sometimes showing a white-grey mottling. The sexes appear similar, though females tend to be slightly larger and heavier.

This lapwing species is commonly found in association with wetlands of varying sizes, from expansive marshes to the smallest damp areas caused by spilling water troughs. In South Africa, they are particularly abundant in mesic grassland regions.

The Blacksmith Lapwing is a common sight from Kenya through central Tanzania to southern and southwestern Africa. They have expanded their range in the 20th century, notably establishing a presence in the western Cape region of South Africa since the 1930s.

Partially migratory, the Blacksmith Lapwing does not engage in large-scale, regular migrations. They are known to be aggressive during the breeding season, particularly towards other lapwings or African jacanas entering their territory.

Breeding occurs in spring, with nests being shallow depressions on bare ground or short grass near water. The nests are typically spaced at least 400 meters apart. After breeding, the young gradually separate from their parents and do not return to their natal areas.

The diet of the Blacksmith Lapwing consists of aquatic and terrestrial invertebrates, which they forage for in their wetland habitats.

The IUCN Red List classifies the Blacksmith Lapwing as Least Concern, indicating that the species does not currently face a significant risk of extinction.

15-4-2018 CHOBE RIVER, NAMIBIA - NILE CROCODILE (Crocodylus niloticus)

9-8-2018 OLIVA MARJAL, 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.

The species has a broad breeding distribution across warm temperate to tropical regions of Asia, Africa, Australia, and Europe. Northern populations are migratory, wintering in Africa and southern Asia, while others remain as permanent residents in warmer areas.

Little Egrets are social yet territorial when feeding. They exhibit a range of foraging behaviors, from active chasing to patient ambush. Their movements are often in response to the presence of other animals, which may stir up prey.

The Little Egret's vocalizations include croaking and bubbling sounds at breeding colonies and a harsh alarm call when disturbed. These calls are similar to those of the Black-crowned Night Heron and the Cattle Egret.

Breeding colonies are often mixed with other water birds. Nests are platforms of sticks located in trees, shrubs, or reed beds. Clutches typically consist of three to five bluish-green eggs, incubated by both parents for about three weeks. The young fledge at approximately six weeks old.

The diet is diverse, including fish, amphibians, small reptiles, mammals, birds, crustaceans, molluscs, insects, spiders, and worms. The Little Egret employs various hunting techniques, both in water and on land, to capture its prey.

9-8-2018 OLIVA MARJAL, VALENCIA - EUROPEAN MOORHEN (JUVENILE) (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.

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.

9-8-2018 OLIVA MARJAL, VALENCIA - SCARLET DARTER DRAGONFLY (Crocothemis erythraea)

9-8-2018 OLIVA MARJAL, VALENCIA - MALLARD (MALE) (Anas platyrhynchos)

The Mallard, or wild duck (Anas platyrhynchos), is a familiar and widespread dabbling duck with a presence across temperate and subtropical regions of the Americas, Eurasia, and North Africa. It has also been introduced to parts of the Southern Hemisphere. The male is renowned for its iridescent green head and white collar, while the female sports a brown-speckled plumage. Both sexes boast a speculum—a patch of feathers with iridescent purple or blue hues bordered by white. The Mallard's length ranges from 50 to 65 cm, with a wingspan of 81 to 98 cm, and it typically weighs between 0.7 and 1.6 kg.

Males during the breeding season are unmistakable with their glossy green heads, white collars, and purple-tinged brown breasts. Females are mottled brown with buff cheeks and an eye-stripe. Both sexes have the distinctive speculum on their wings. The male's bill is yellowish-orange tipped with black, while the female's is darker, ranging from black to mottled orange and brown.

Mallards are found in a variety of wetlands, including parks, small ponds, rivers, lakes, and estuaries. They prefer water depths less than 0.9 meters and are drawn to areas with aquatic vegetation.

This species is distributed across the Northern and Southern Hemispheres, from Alaska to Mexico, the Hawaiian Islands, across the Palearctic, and down to southeastern and southwestern Australia and New Zealand.

Mallards are social birds that often form large flocks outside the breeding season. They are adaptable and can thrive in urban areas. The species is migratory in the northern parts of its range.

9-8-2018 CAMI LES FONTS OLIVA, 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.

The mallard is widely distributed across the Northern and Southern Hemispheres; in North America its range extends from southern and central Alaska to Mexico, the Hawaiian Islands, across the Palearctic, from Iceland and southern Greenland and parts of Morocco (North Africa) in the west, Scandinavia and Britain to the north, and to Siberia, Japan, and South Korea. Also in the east, it ranges to south-eastern and south-western Australia and New Zealand in the Southern hemisphere.: 505  It is strongly migratory in the northern parts of its breeding range, and winters farther south. For example, in North America, it winters south to the southern United States and northern Mexico, but also regularly strays into Central America and the Caribbean between September and May. A drake later named "Trevor" attracted media attention in 2018 when it turned up on the island of Niue, an atypical location for mallards.

The mallard inhabits a wide range of habitats and climates, from the Arctic tundra to subtropical regions. It is found in both fresh- and salt-water wetlands, including parks, small ponds, rivers, lakes and estuaries, as well as shallow inlets and open sea within sight of the coastline. Water depths of less than 0.9 metres (3.0 ft) are preferred, with birds avoiding areas more than a few metres deep. They are attracted to bodies of water with aquatic vegetation.

The mallard is omnivorous and very flexible in its choice of food. Its diet may vary based on several factors, including the stage of the breeding cycle, short-term variations in available food, nutrient availability, and interspecific and intraspecific competition. The majority of the mallard's diet seems to be made up of gastropods, insects (including beetles, flies, lepidopterans, dragonflies, and caddisflies), crustaceans, other arthropods, worms, many varieties of seeds and plant matter, and roots and tubers. During the breeding season, male birds were recorded to have eaten 37.6% animal matter and 62.4% plant matter, most notably the grass Echinochloa crus-galli, and nonlaying females ate 37.0% animal matter and 63.0% plant matter, while laying females ate 71.9% animal matter and only 28.1% plant matter. Plants generally make up the larger part of a bird's diet, especially during autumn migration and in the winter.

The mallard usually feeds by dabbling for plant food or grazing; there are reports of it eating frogs. However, in 2017 a flock of mallards in Romania were observed hunting small migratory birds, including grey wagtails and black redstarts, the first documented occasion they had been seen attacking and consuming large vertebrates. It usually nests on a river bank, but not always near water. It is highly gregarious outside of the breeding season and forms large flocks, which are known as "sordes".

9-8-2018 OLIVA MARJAL, VALENCIA - SPOTTED FLYCATCHER (Muscicapa striata)

8-8-2018 RIO ALGAR ALTEA, ALICANTE - 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.

Male Mallards have a dark, iridescent-green head and bright yellow bill. The gray body is sandwiched between a brown breast and black rear. Females and juveniles are mottled brown with orange-and-brown bills. Both sexes have a white-bordered, blue “speculum” patch in the wing.

Unlike larger waterfowl such as the Tundra Swan, which mate for life, Mallard pairs only stay together for a season. Courtship and pair formation begin each fall and winter. Groups of males display for a hen with a variety of behaviors, including head and tail shaking, head-bobbing, dipping, and whistling.

The mallard is widely distributed across the Northern and Southern Hemispheres; in North America its range extends from southern and central Alaska to Mexico, the Hawaiian Islands, across the Palearctic, from Iceland and southern Greenland and parts of Morocco (North Africa) in the west, Scandinavia and Britain to the north, and to Siberia, Japan, and South Korea. Also in the east, it ranges to south-eastern and south-western Australia and New Zealand in the Southern hemisphere It is strongly migratory in the northern parts of its breeding range, and winters farther south.

The mallard inhabits a wide range of habitats and climates, from the Arctic tundra to subtropical regions. It is found in both fresh- and salt-water wetlands, including parks, small ponds, rivers, lakes and estuaries, as well as shallow inlets and open sea within sight of the coastline. Water depths of less than 0.9 metres (3.0 ft) are preferred, with birds avoiding areas more than a few metres deep. They are attracted to bodies of water with aquatic vegetation.

15-4-2018 CHOBE RIVER, NAMIBIA - HIPPOPOTAMUS (Hippopotamus amphibius)

The hippopotamus (Hippopotamus amphibius) (/ˌhɪpəˈpɒtəməs/; pl.: hippopotamuses; often shortened to hippo (pl.: hippos), further qualified as the common hippopotamus, Nile hippopotamus and river hippopotamus, is a large semiaquatic mammal native to sub-Saharan Africa. It is one of only two extant species in the family Hippopotamidae, the other being the pygmy hippopotamus (Choeropsis liberiensis or Hexaprotodon liberiensis). Its name comes from the ancient Greek for "river horse" (ἱπποπόταμος).

After elephants and rhinoceroses, the hippopotamus is the next largest land mammal. It is also the largest extant land artiodactyl. Despite their physical resemblance to pigs and other terrestrial even-toed ungulates, the closest living relatives of the hippopotamids are cetaceans (whales, dolphins, porpoises, etc.), from which they diverged about 55 million years ago. Hippos are recognisable for their barrel-shaped torsos, wide-opening mouths with large canine tusks, nearly hairless bodies, pillar-like legs, and large size: adults average 1,500 kg (3,300 lb) for bulls (males) and 1,300 kg (2,900 lb) for cows (females). Despite its stocky shape and short legs, it is capable of running 30 km/h (19 mph) over short distances.

Hippos inhabit rivers, lakes, and mangrove swamps. Territorial bulls each preside over a stretch of water and a group of five to thirty cows and calves. Mating and birth both occur in the water. During the day, hippos remain cool by staying in water or mud, emerging at dusk to graze on grasses. While hippos rest near each other in the water, grazing is a solitary activity and hippos typically do not display territorial behaviour on land. Hippos are among the most dangerous animals in the world due to their aggressive and unpredictable nature. They are threatened by habitat loss and poaching for their meat and ivory (canine teeth).

8-8-2018 RIO ALGAR ALTEA, ALICANTE - GREYLAG GOOSE (Anser anser)

8-8-2018 RIO ALGAR ALTEA, ALICANTE - YELLOW LEGGED GULL (JUVENILE) (Larus michahellis)

The Yellow-legged Gull (Larus michahellis) is a large, robust seabird with a commanding presence. Its size can be quite variable, with the smallest females being scarcely larger than a Common Gull, and the largest males approaching the heft of a Great Black-backed Gull. Adults typically exhibit a grey back, a shade lighter than that of the Lesser Black-backed Gull, and their heads are notably whiter in the autumn months. A distinctive feature is their yellow legs, which give this species its common name.

When observing the Yellow-legged Gull, look for the yellow legs that contrast with the grey back and the white head, which becomes even whiter during the autumn. The wing tips are black with limited white spots, and adults have a red spot on the bill. The eye is surrounded by a red ring. Juveniles can be identified by their paler head, rump, and underparts, dark bill and eyes, and a black band on the tail.

This gull favors a variety of coastal environments, often nesting on sea cliffs, islands, and occasionally on buildings within urban settings. It is also known to breed on trees in some regions.

The Yellow-legged Gull has a breeding range centered around the Mediterranean Sea, extending to the Atlantic islands and coasts as far north as Brittany and west to the Azores. Its presence is also noted on the western side of the Black Sea.

The species is known for its adaptability, with many individuals remaining in the same area year-round, while others migrate to milder regions of western Europe or head south to areas such as Senegal and the Red Sea. Post-breeding dispersal can lead to increased numbers in regions like southern England from July to October.

The vocalizations of the Yellow-legged Gull are characterized by a loud, laughing call that is deeper and more nasal than that of the Herring Gull.

Breeding typically occurs in colonies, with nests constructed on the ground or cliff ledges. The nests are mounds of vegetation, and the species is known for its vigorous defense of its eggs, usually numbering three. Incubation lasts for 27–31 days, and fledging occurs after 35–40 days.

An opportunistic forager, the Yellow-legged Gull is omnivorous, feeding on a wide range of items from rubbish tips to field prey, coastal offerings, and even other seabirds' catches. Remarkably, during periods of food scarcity, such as the lockdown in Italy in 2020, these gulls have been observed preying on larger animals like rats and rock doves.