15-6-2018 OLIVA MED MERCAT, VALENCIA - CRESTED CARACARA (Caracara plancus)

Caracara is a genus in the family Falconidae and the subfamily Polyborinae. It contains one extant species, the crested caracara, and one recently extinct species, the Guadalupe caracara. The crested caracara had in recent years been split into a northern species C. cheriway and a southern species C. plancus, but the South American Classification Committee of the American Ornithological Society has voted to again merge the two, retaining C. plancus as the crested caracara. The taxonomists of the International Ornithologists' Union have also merged them.

The crested caracara is distinguished by its long legs and medium size. The birds can reach a length of 49–58 cm (19–23 in) from head to tail. There are usually four points of identification of the caracara: strikingly white markings on the neck, the tip of both wings, and the tail. Along with their medium length, the caracara also has a wingspan of 122–129 cm (48–51 in). When flying, the caracara is often noted to have a pattern on their underside that looks like a cross.

The behaviors of caracaras are considered quite strange in relation to those of other falcons. The bird is often seen walking on the ground in search of prey. In addition to a preference of walking over flying, the birds also create close bonds with their mates. Caracaras are territorial creatures who are year-round landlords of trees and land that they occupy. Their aggression is an extension of this, which is why they have been seen taking food from much larger creatures like vultures. In flight, this bird is known for having very direct flight. It does not soar for leisure.

The crested caracara is the only extant species in Caracara, and was formerly separated into two species, the northern and southern crested caracaras. The modern range includes Cuba, South America, most of Central America and Mexico, just reaching the southernmost parts of the United States, including Florida and Southeast Texas.

15-6-2018 OLIVA MED MERCAT, VALENCIA - BARN OWL (Tyto alba)

The barn owl (Tyto alba), a medium-sized and pale-colored owl, is distinguished by its long wings and short, square tail. Across its subspecies, it exhibits considerable variation in size and color, typically measuring 33 to 39 cm in length with a wingspan of 80 to 95 cm. The plumage on the head and back ranges from grey to brown, while the underparts can be white to brown, sometimes speckled with dark markings. The face is heart-shaped and predominantly white across most subspecies.

To identify the barn owl in flight, look for its distinctive heart-shaped face, black eyes, and pale body. The tail shape helps distinguish it from other owls, and the undulating flight pattern is characteristic. The legs and feet are long and slender, aiding in silent flight and maneuverability.

Barn owls favor open habitats such as farmland or grassland with interspersed woodland, typically below 2,000 meters in altitude. They are often found hunting along woodland edges or in rough grass strips next to pastures.

This cosmopolitan species is found on every continent except Antarctica, avoiding only polar and desert regions, Asia north of the Himalayas, and some Pacific islands. It is generally sedentary, with young dispersing from natal sites along river corridors.

Barn owls are nocturnal but may also hunt by day in some regions like Great Britain and certain Pacific Islands. They are not particularly territorial but have a defined home range for foraging. Males and females usually roost separately outside the breeding season.

The barn owl does not hoot but emits an eerie, drawn-out screech. Males may produce a shrill twitter during courtship, and both sexes can hiss like a snake to deter intruders.

Breeding times vary by location, with clutches averaging about four eggs laid in nests located in hollow trees, old buildings, or cliff fissures. The female incubates the eggs and relies on the male for food.

Barn owls primarily feed on small mammals, which they locate by sound, thanks to their acute hearing. They may also consume birds, lizards, amphibians, and insects, depending on availability.

Globally, the barn owl is considered to be of least conservation concern, with populations capable of rapid expansion when prey is abundant. However, some subspecies with restricted ranges are more threatened.

15-6-2018 OLIVA MED MERCAT, VALENCIA - GREAT GREY OWL (Strix nebulosa)

The great grey owl, Strix nebulosa, stands as the world's largest owl by length. This majestic bird is recognized by its large rounded head, grey face, and piercing yellow eyes encircled by darker plumage. Its underparts are a lighter shade adorned with dark streaks, while the upper parts boast a grey hue with pale bars. Notably lacking ear tufts, the great grey owl possesses the most expansive facial disc of any raptor, and a distinctive white collar, reminiscent of a "bow-tie," sits just below its beak. The species' long tail, tapering to a rounded end, contributes to its impressive size, which is somewhat exaggerated by its voluminous feathers.

Adult great grey owls can be identified by their lack of ear tufts and the largest facial disc among raptors. They exhibit a white "bow-tie" below the beak and a long, rounded tail. Males are typically smaller than females, a common trait among owl species. The great grey owl's call is a deep, rhythmic series of 'who's, primarily associated with territorial claims or communication with offspring.

The great grey owl favors the dense coniferous forests of the taiga for breeding, often near open spaces such as meadows or bogs. In some regions, like Oregon and California, they have adapted to nesting in mixed oak woodlands.

This owl is a permanent resident across the Northern Hemisphere, from North America to Eurasia. It breeds from Quebec to the Pacific coast and Alaska, and across northern Asia from Finland and Estonia to Russia. Some populations may move southward when prey is scarce.

The great grey owl is a patient hunter, often swooping down from a perch or flying low to capture prey. They are known to hunt primarily during the night, dawn, and dusk. Their hunting prowess is aided by their exceptional hearing, allowing them to detect prey beneath deep snow.

The adult's call is a deep 'who' sound, while the young may produce various chatters, shrieks, or hisses. Tame individuals may emit higher-pitched hoots when fed by humans.

Great grey owls do not construct their own nests, instead opting for previously used nests of large birds or natural cavities. They may breed from March to May, with clutch sizes typically around four eggs. The incubation period lasts about 30 days, and the young are dependent on their parents for several months post-fledging.

The great grey owl's diet is predominantly small rodents, with the specific prey varying by region and availability. They are capable of detecting and capturing prey moving under significant snow cover, a hunting technique known as "snow-plunging."

Great grey owls are not highly territorial and are less aggressive than other large predatory birds. They do not defend large nesting territories or hunting grounds through aggression, although females can be protective of their eggs and young.

15-6-2018 OLIVA MED MERCAT, VALENCIA - EURASIAN EAGLE OWL (Bubo bubo)

The Eurasian eagle-owl (Bubo bubo) is a formidable avian predator and one of the largest owl species. The females, which are larger than the males, can reach a total length of 75 cm (30 in) and boast a wingspan of up to 188 cm (6 ft 2 in). This species is characterized by prominent ear tufts, mottled upper parts with darker blackish and tawny coloring, barred wings and tail, and a buff underpart streaked with darker shades. The facial disc is not sharply defined, and the orange eyes are a striking feature.

To identify the Eurasian eagle-owl, look for its large size, barrel-shaped body, and erect ear tufts. The orange eyes are distinctive, and the plumage is a mix of brown-black to tawny-buff with dense freckling on the forehead and crown, and dark splotches on a pale background on the back and mantle. The underparts are creamy to tawny with fine dark barring.

Eurasian eagle-owls favor a variety of habitats but are predominantly found in mountainous or other rocky regions near woodland edges, shrubby areas, and wetlands. They also inhabit coniferous forests, steppes, and other areas at varied elevations that are typically remote.

The Eurasian eagle-owl has an extensive range across Europe and Asia, from the Iberian Peninsula to Japan. It is also present in the UK, where it is considered non-native.

15-6-2018 OLIVA MED MERCAT, VALENCIA - AMERICAN KESTREL (Falco sparverius)

The American kestrel (Falco sparverius), colloquially known as the sparrow hawk, is North America's smallest and most prevalent falcon. Exhibiting a striking sexual dimorphism, the female is moderately larger than the male. Both sexes boast a rufous back with distinct barring, but it is the male that carries the more colorful plumage, with blue-grey wings adorned with black spots and a white underbelly marked with black barring. The female, on the other hand, displays a rufous back and wings with dark brown barring and a creamy to buff underside with heavy brown streaking. Juveniles mirror the adult plumage closely.

Males can be identified by their blue-grey wings with black spots and the rufous tail with a single black subterminal band. Females, however, have rufous wings with dark brown barring and a tail marked with numerous narrow dark bands. Both sexes have a white face with a bluish-grey cap and two vertical black facial markings on each side of the head, which is unique among falcons. The presence of two black spots on the nape, resembling false eyes, is a distinctive feature of this species.

The American kestrel thrives in a variety of open to semi-open landscapes, including grasslands, meadows, deserts, urban, and suburban areas. Its habitat must provide perches, open spaces for hunting, and cavities for nesting.

This falcon's breeding range spans from central and western Alaska across northern Canada to Nova Scotia, and south throughout North America into central Mexico and the Caribbean. It is also a local breeder in Central America and is widely distributed throughout South America. Birds breeding in Canada and the northern United States often migrate south for the winter.

The American kestrel is an adaptable hunter, often perching and scanning the ground for prey or hunting from the air. It is known to hover with rapid wing beats before diving to capture prey. This species is also recognized for its energy-conserving hunting methods.

The kestrel's vocal repertoire includes the "klee" or "killy," a rapid series when excited, the "whine" associated with feeding and copulation, and the "chitter" used in social interactions between males and females.

Kestrels are cavity nesters, laying three to seven eggs that are incubated by both sexes. They exhibit strong pair bonds, often reusing previous nesting sites. The breeding season sees males performing dive displays to attract mates.

The diet of the American kestrel is diverse, including insects like grasshoppers, lizards, mice, and small birds. Its broad diet has contributed to the species' success across a wide range of environments.

The American kestrel is classified as Least Concern by the IUCN, though some regional populations have experienced declines. Conservation efforts include monitoring programs and the establishment of nest boxes to support breeding populations.

The American kestrel is a popular choice for beginner falconers due to its manageable size and adaptability. While not as powerful as larger falcons, with proper training, kestrels can effectively hunt smaller birds like sparrows and starlings.

15-6-2018 OLIVA MED MERCAT, VALENCIA - BARN OWL (Tyto alba)

The barn owl (Tyto alba), a medium-sized and pale-colored owl, is distinguished by its long wings and short, square tail. Across its subspecies, it exhibits considerable variation in size and color, typically measuring 33 to 39 cm in length with a wingspan of 80 to 95 cm. The plumage on the head and back ranges from grey to brown, while the underparts can be white to brown, sometimes speckled with dark markings. The face is heart-shaped and predominantly white across most subspecies.

To identify the barn owl in flight, look for its distinctive heart-shaped face, black eyes, and pale body. The tail shape helps distinguish it from other owls, and the undulating flight pattern is characteristic. The legs and feet are long and slender, aiding in silent flight and maneuverability.

Barn owls favor open habitats such as farmland or grassland with interspersed woodland, typically below 2,000 meters in altitude. They are often found hunting along woodland edges or in rough grass strips next to pastures.

This cosmopolitan species is found on every continent except Antarctica, avoiding only polar and desert regions, Asia north of the Himalayas, and some Pacific islands. It is generally sedentary, with young dispersing from natal sites along river corridors.

Barn owls are nocturnal but may also hunt by day in some regions like Great Britain and certain Pacific Islands. They are not particularly territorial but have a defined home range for foraging. Males and females usually roost separately outside the breeding season.

15-6-2018 OLIVA MED MERCAT, VALENCIA - SOUTHERN WHITE FACED OWL (Ptilopsis granti)

The Southern white-faced owl (Ptilopsis granti) is a fairly small owl in the family Strigidae. It is native to the southern half of Africa. It was formerly regarded as a subspecies of the northern white-faced owl (P. leucopsis) but the two are now commonly treated as separate species.

It is 22–28 cm (8.7–11.0 in) long and weighs 185–220 g (6.5–7.8 oz). The upperparts are grey with dark streaks and there are white spots on the scapular feathers. The underparts are whitish with dark streaks. The face is white with a black border and black around the large orange eyes. The head has two short ear-tufts with black tips. Juvenile birds have a greyish face. The northern white-faced owl is usually paler and browner with reduced streaking below.

Their call is a series of fast, bubbling hoots, uttered at night and frequently repeated. These fast, staccato notes followed by a longer and higher-pitched ‘hoot’ are extensively used during breeding season and pairs of owls often sing together. The Northern white-faced owl has a very different two-note call.

The Southern white-faced owl (Ptilopsis granti) is a fairly small owl in the family Strigidae. It is native to the southern half of Africa. It was formerly regarded as a subspecies of the northern white-faced owl (P. leucopsis) but the two are now commonly treated as separate species.

It is 22–28 cm (8.7–11.0 in) long and weighs 185–220 g (6.5–7.8 oz). The upperparts are grey with dark streaks and there are white spots on the scapular feathers. The underparts are whitish with dark streaks. The face is white with a black border and black around the large orange eyes. The head has two short ear-tufts with black tips. Juvenile birds have a greyish face. The northern white-faced owl is usually paler and browner with reduced streaking below.

Their call is a series of fast, bubbling hoots, uttered at night and frequently repeated. These fast, staccato notes followed by a longer and higher-pitched ‘hoot’ are extensively used during breeding season and pairs of owls often sing together. The Northern white-faced owl has a very different two-note call.

Southern white-faced owls occur patchily in the western regions central and southern Africa, including Gabon, Republic of Congo, Democratic Republic of the Congo and Angola. They seem to be more common in regions such as Uganda, southern Kenya and Tanzania, as well as Zambia, Namibia, Botswana, Zimbabwe, Mozambique, Eswatini and the northern regions of South Africa.

It inhabits savanna and dry woodland. It is usually seen alone or in pairs. It mainly hunts large insects, as well as occasional small mammals, birds and reptiles.

The eggs are usually laid in the old nest of another bird. The clutch contains two or three eggs which are incubated for about 30 days. The young birds leave the nest about a month after hatching.

After the summer, southern white-faced owls increase their resting metabolic rate by approximately 45% to adjust to the climate changes. Furthermore, the owls do this to increase cold temperature tolerance which is unusual for these creatures. Not only that, but the BMR (Basal Metabolic Rate) of the owl is lower than what is expected of other birds of a similar size to help them when there is a lack of food. This is unusual considering the lack of food and other survival resources during the winter.

15-6-2018 MONTE CORONA, VALENCIA - WAVE MOTH (Scopula minorata)

Scopula minorata is a moth of the family Geometridae. It was described by Jean Baptiste Boisduval in 1833. It is found in Africa south of the Sahara, the Arabian Peninsula and on the islands of the Indian Ocean. Furthermore, it is found in southern Europe. It can be distinguished from Scopula lactaria only by examination of its genitalia.

The wingspan is 15–20 millimetres (0.59–0.79 in).

23-3-2018 BOULDER BEACH, CAPE TOWN - HADADA IBIS (Bostrychia hagedash)

The Hadada Ibis, Bostrychia hagedash, is a medium-sized bird native to the diverse landscapes of Sub-Saharan Africa. It is characterized by its stout legs and distinctive down-curved bill. The adult Hadada Ibis typically measures around 76 cm in length and weighs approximately 1.2 kg. Both sexes share similar plumage, which is primarily grey to partly brown, with a striking iridescent sheen of green or purple on the wing coverts.

When observing the Hadada Ibis, look for the narrow white stripe across its cheeks, often referred to as the "moustache," though it does not extend to the mouth corners. During the breeding season, the bird sports a red culmen on the upper mandible's basal half and similarly colored upper toe surfaces. Its powerful and broad wings facilitate quick take-offs and agile flight through dense foliage.

The Hadada Ibis thrives in a variety of habitats, including open grasslands, savannas, wetlands, and increasingly in urban environments such as parks, school fields, and residential gardens. It prefers areas with moist and soft soils, which are conducive to its foraging habits.

This species is widespread across Sub-Saharan Africa, with its range extending from Sudan to South Africa. The Hadada Ibis has seen a notable range expansion in southern Africa, attributed to increased tree cover and irrigation in human-altered landscapes.

The Hadada Ibis is known for its social roosting behavior, often in groups atop trees. It is a diurnal bird, vocalizing loudly during morning and evening flights. Its diet consists of insects, millipedes, earthworms, and other small invertebrates, which it hunts using its long, scimitar-like bill to probe the soil. The Hadada Ibis is also appreciated in urban settings for its role in controlling pests on lawns and greens.

The Hadada Ibis is renowned for its loud "haa-haa-haa-de-dah" call, which is particularly prominent during flight or when startled. This call has earned the species its onomatopoeic name. While roosting, a single loud "haaaa" can be heard, and a low growl, akin to a young puppy's, serves as a contact call when foraging.

Monogamous by nature, Hadada Ibises maintain pair bonds year-round. Breeding is timed with the rainy season, with nests constructed as twig platforms in large trees. Both parents incubate the typical clutch of three to four eggs for about 26 days, and the fledglings leave the nest after approximately 33 days.

The Hadada Ibis can be distinguished from other ibis species by its unique vocalizations, the iridescent sheen on its wings, and the red coloration on its bill and toes during the breeding season.

Hadada Ibises primarily feed on soil invertebrates, which they detect using sensory pits around their bill tips. They are also known to consume snails and small reptiles, providing a natural pest control service in both natural and urban settings.

The IUCN Red List classifies the Hadada Ibis as Least Concern due to its extensive and common presence throughout its large range. The species has adapted well to human-modified environments, contributing to its stable population status.

23-3-2018 BOULDERS BAY, SOUTH AFRICA - CAPE WAGTAIL (Motacilla capensis ssp capensis)

The Cape wagtail, or Wells's wagtail, is a modestly adorned bird with a relatively short tail. Its upperparts are an unassuming olive grey, while the face is similarly hued, accented by a tan supercilium and dark lores. The underparts are a soft creamy white, occasionally showing a subtle pinkish tinge on the lower breast and belly. A dusky breast band is present, and the flanks share the olive-grey of the breast. The wings are a brownish black with pale feather edging, and the tail is predominantly blackish, save for the white outer feathers. Juveniles resemble adults but are a touch browner above and have a more yellowish hue below.

Look for the iconic black triangle on the chest, a key feature for identification. There is no sexual dimorphism in plumage, so males and females appear alike.

The Cape wagtail is a versatile species, inhabiting areas near water such as riverbanks, as well as rocky coastlines, farms, villages, cultivated lands, parks, gardens, and urban centres. In East Africa, it is typically found at altitudes above 2,000 meters.

This bird is widespread in eastern and southern Africa, ranging from Uganda and Kenya, through Zambia and Angola, and down to the Western Cape and the Cape of Good Hope.

The species is mostly resident and territorial, but some may migrate altitudinally or form flocks outside the breeding season.

Cape wagtails are monogamous and may remain with their breeding partner across multiple seasons. They are solitary nesters, constructing nests in a variety of natural and artificial recesses. Breeding can occur year-round, with a peak from mid-winter to early summer. Clutches typically consist of one to five eggs, incubated by both parents for about two weeks. Chicks are fed by both parents and fledge in about two to three weeks, with full independence reached approximately one to two months post-fledging.

The Cape wagtail's diet consists mainly of invertebrates, which it hunts on the ground or in shallow water. It is known to feed on a variety of prey, including insects, fiddler crabs, sandhoppers, snails, ticks, tadpoles, small fish, and even small chameleons. It is also known to consume carrion and occasionally human food.

The Cape wagtail is classified as Least Concern by the IUCN, indicating that it is not currently at significant risk of widespread decline.

23-3-2018 BOULDERS BEACH, SOUTH AFRICA - AFRICAN PENGUIN (Spheniscus demersus)

The African penguin, known scientifically as Spheniscus demersus and colloquially as the Cape penguin or South African penguin, is a flightless bird distinguished by its streamlined body and flippers adapted for life in the water. Adults typically weigh between 2.2 and 3.5 kilograms and stand 60 to 70 centimeters tall. Notable for the pink patches of skin above their eyes and a stark black facial mask, their upper parts are a contrasting black against the white underparts, which are adorned with spots and a distinctive black band.

To identify the African penguin, look for the unique pink gland above their eyes, which becomes more vibrant as they regulate their temperature. Their black and white plumage is a classic example of countershading, providing camouflage from predators. Each penguin has a unique pattern of black spots on the chest, akin to human fingerprints. Males are generally larger with longer beaks than females.

These penguins are found along the coastlines of southern Africa, with colonies established on various islands and some mainland sites. They prefer nesting in burrows or under vegetation to protect against predators and the hot sun.

13-6-2018 ULLAL DE BOLDOVI, VALENCIA - LITTLE GREBE (Tachybaptus ruficollis)

The Little Grebe, or Tachybaptus ruficollis, known colloquially as the dabchick, is the smallest European member of the grebe family. This diminutive water bird measures a mere 23 to 29 centimeters in length and is a common sight in open bodies of water across its range.

In the summer, the adult Little Grebe is a sight to behold with its dark upper parts and a striking rufous coloration on the neck, cheeks, and flanks, complemented by a bright yellow gape. Outside of the breeding season, the plumage turns to a more subdued brownish-grey. Juveniles can be identified by their yellow bills tipped with black and streaked cheeks. In winter, the species is recognizable by its buff plumage, darker back and cap, and distinctive rear end.

The Little Grebe favors heavily vegetated areas of freshwater lakes for breeding. It is adept at using this dense vegetation as a cover.

This bird has a broad range, breeding across Europe, much of Asia down to New Guinea, and most of Africa. In winter, many individuals move to open or coastal waters, and it becomes migratory in regions where waters freeze.

An excellent swimmer and diver, the Little Grebe hunts for fish and aquatic invertebrates underwater. It nests at the water's edge, covering its eggs with weeds when leaving the nest to evade predators. The young are capable swimmers soon after hatching and are often seen riding on the backs of adults.

The breeding call of the Little Grebe is a distinctive trilled weet-weet-weet or wee-wee-wee, reminiscent of a horse's whinny.

Breeding occurs in small colonies. The Little Grebe lays four to seven eggs, and the chicks are precocial, swimming shortly after hatching. In India, the species breeds during the monsoon season.

Its diet consists primarily of fish and aquatic invertebrates, which it hunts proficiently underwater.

13-6-2018 RACO DE OLLA, 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.

13-6-2018 RACO DE OLLA, VALENCIA - BLACK WINGED STILT (JUVENILE) (Himantopus himantopus)

The Black-winged Stilt, Himantopus himantopus, is a slender wader known for its strikingly long, pink legs and contrasting black-and-white plumage. This elegant bird is a member of the avocet and stilt family, Recurvirostridae.

Adult Black-winged Stilts measure 33–36 cm in length. They possess a long, thin black bill and display a distinctive black and white coloration. The head and neck are predominantly white, with variable black markings depending on the sex and subspecies. Males typically have a glossy or greenish sheen on their black backs, while females exhibit a more brownish tinge. During flight, their long legs trail behind, and their wingbeats are steady.

These birds favor marshes, shallow lakes, and ponds as their breeding grounds. They are also known to inhabit coastal areas during migration and in the winter months.

The Black-winged Stilt has a wide range, extending across Europe, Asia, and Africa. Some populations migrate to coastal regions in winter, while others in milder climates may remain resident or engage in short-range movements.

Black-winged Stilts are often seen foraging in shallow waters, gracefully picking insects and crustaceans from the surface. They are known to nest in small groups, sometimes alongside avocets, and exhibit a variety of courtship behaviors, including intricate displays and duets.

The flight call of the Black-winged Stilt is a sharp and clear kleek, typically heard during its aerial maneuvers.

Nests are simple bare spots on the ground near water. These birds are communal nesters and may breed in loose colonies. They have been known to breed as far north as Britain, with recent successful breeding events recorded in Southern and Northern England.

Their diet consists mainly of insects and crustaceans, which they deftly pick from the water's surface or from wet sand.

13-6-2018 MONTE CORONA, VALENCIA - HOUSE SPARROW (MALE) (Passer domesticus)

The house sparrow (Passer domesticus) is a member of the sparrow family Passeridae. This small bird typically measures around 16 cm (6.3 in) in length and weighs between 24–39.5 g (0.85–1.39 oz). The species exhibits sexual dimorphism, with females and young birds displaying pale brown and grey plumage, while males are characterized by more vibrant black, white, and brown markings.

Males can be identified by their bright black, white, and brown markings, with a distinctive black bib, white cheeks, and a grey crown. Females lack the striking head patterns of males and are predominantly buffish with softer coloration. Juveniles resemble adult females but are generally paler with less defined markings.

The house sparrow is highly adaptable and can thrive in both urban and rural environments. It is commonly found in close association with human habitation and avoids dense forests, grasslands, polar regions, and deserts far from human development.

13-6-2018 ALBUFERA, VALENCIA - AUDOUIN'S GULL (Ichthyaetus audouinii)

The Audouin's gull, Ichthyaetus audouinii, presents itself as a large gull species, predominantly inhabiting the Mediterranean, the western coast of Saharan Africa, and the Iberian Peninsula. Its name pays homage to the French naturalist Jean Victoire Audouin. Resembling a small European herring gull, the adult Audouin's gull is distinguished by its short, stubby red bill and the unique "string of pearls" white wing primary tips. The legs of this bird are a subtle grey-green, and it takes a full four years for the gull to don its adult plumage.

When observing the Audouin's gull, one should note the red bill and the distinctive pattern of white spots along the wingtips, which contrast with the larger "mirrors" seen in other gull species. These features are key to distinguishing it from its relatives.

This gull favors coastal and pelagic environments, strictly adhering to regions where it can pursue its specialized diet.

The Audouin's gull is found in the Mediterranean, along the western Saharan African coast, and on the Iberian Peninsula. It breeds on small islands, either colonially or in solitude.

13-6-2018 ALBUFERA, VALENCIA - BLACK WINGED STILT (Himantopus himantopus)

The Black-winged Stilt, Himantopus himantopus, is a slender wader known for its strikingly long, pink legs and contrasting black-and-white plumage. This elegant bird is a member of the avocet and stilt family, Recurvirostridae.

Adult Black-winged Stilts measure 33–36 cm in length. They possess a long, thin black bill and display a distinctive black and white coloration. The head and neck are predominantly white, with variable black markings depending on the sex and subspecies. Males typically have a glossy or greenish sheen on their black backs, while females exhibit a more brownish tinge. During flight, their long legs trail behind, and their wingbeats are steady.

These birds favor marshes, shallow lakes, and ponds as their breeding grounds. They are also known to inhabit coastal areas during migration and in the winter months.

The Black-winged Stilt has a wide range, extending across Europe, Asia, and Africa. Some populations migrate to coastal regions in winter, while others in milder climates may remain resident or engage in short-range movements.

13-6-2018 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.

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.

13-6-2018 ALBUFERA, VALENCIA - GLOSSY IBIS (Plegadis falcinellus)

The glossy ibis (Plegadis falcinellus) is a water bird in the order Pelecaniformes and the ibis and spoonbill family Threskiornithidae. The scientific name derives from Ancient Greek plegados and Latin, falcis, both meaning "sickle" and referring to the distinctive shape of the bill.

This is the most widespread ibis species, breeding in scattered sites in warm regions of Europe, Asia, Africa, Australia, and the Atlantic and Caribbean regions of the Americas. It is thought to have originated in the Old World and spread naturally from Africa to northern South America in the 19th century, from where it spread to North America. The glossy ibis was first documented in the New World in 1817 (New Jersey). Audubon saw the species just once in Florida in 1832. It expanded its range substantially northwards in the 1940s and to the west in the 1980s. This species is migratory; most European birds winter in Africa, and in North America birds from north of the Carolinas winter farther south. Though generally suspected to be a migratory species in India, the glossy ibis is resident in western India. Birds from other populations may disperse widely outside the breeding season. It is increasing in Europe. It disappeared as a regular breeding bird in Spain in the early 20th century, but re-established itself in 1993 and has since rapidly increased with thousands of pairs in several colonies. It has also established rapidly increasing breeding colonies in France, a country with very few breeding records before the 2000s. An increasing number of non-breeding visitors are seen in northwestern Europe, a region where glossy ibis records historically were very rare. For example, there appears to be a growing trend for birds to winter in Britain and Ireland, with at least 22 sightings in 2010. In 2014, a pair attempted to breed in Lincolnshire, the first such attempt in Britain. The first successful breeding in Britain was a pair which fledged one young in Cambridgeshire in 2022. A few birds now spend most summers in Ireland, but there is no present evidence of breeding. In New Zealand, a few birds arrive there annually, mostly in the month of July; recently a pair bred amongst a colony of royal spoonbill.

Glossy ibises undertake dispersal movements after breeding and are highly nomadic. The more northerly populations are fully migratory and travel on a broad front, for example across the Sahara Desert. Glossy ibis ringed in the Black Sea seem to prefer the Sahel and West Africa to winter, those ringed in the Caspian Sea have been found to move to East Africa, the Arabian peninsula and as far east as Pakistan and India. Numbers of glossy ibis in western India varied dramatically seasonally with the highest numbers being seen in the winter and summers, and drastically declining in the monsoon likely indicating local movements to a suitable area to breed. Populations in temperate regions breed during the local spring, while tropical populations nest to coincide with the rainy season. Nesting is often in mixed-species colonies. When not nesting, flocks of over 100 individuals may occur on migration, and during the winter or dry seasons the species is usually found foraging in small flocks. Glossy ibises often roost communally at night in large flocks, with other species, occasionally in trees which can be some distance from wetland feeding areas.

13-6-2018 RACO DE OLLA, VALENCIA - PIED AVOCET (Recurvirostra avosetta)

The pied avocet, Recurvirostra avosetta, presents a striking silhouette with its bold black and white plumage. This large wader, belonging to the avocet and stilt family, Recurvirostridae, is adorned with a distinctive black cap and black markings on its wings and back, contrasting sharply against its otherwise white body. The species is noted for its elegant, upturned bill and elongated, bluish legs, which add to its graceful demeanor.

Adult pied avocets measure approximately 16.5–17.75 inches in length, with a wingspan stretching around 30–31.5 inches. Their long legs and upturned bills, measuring about 2.95–3.35 inches and 3–4 inches respectively, are key features for identification. Both sexes appear similar, while juveniles can be distinguished by their more greyish and sepia tones.

These birds favor shallow lakes with brackish water and exposed mudflats, which provide ideal foraging and breeding grounds.

The pied avocet breeds across temperate Europe and extends across the Palearctic to Central Asia and the Russian Far East. It is a migratory species, with most individuals wintering in Africa or southern Asia. Some, however, remain in the milder parts of their range during winter, such as southern Spain and southern England.

13-6-2018 RACO DE OLLA, VALENCIA - COMMON TERN (Sterna hirundo)

The Common Tern, Sterna hirundo, is a slender seabird with a circumpolar distribution, breeding in temperate and subarctic regions of Europe, Asia, and North America. It is a migratory species, wintering in coastal tropical and subtropical regions. Adults display light grey upperparts, white to very light grey underparts, and a black cap. Their legs are orange-red, and they possess a narrow pointed bill, which varies in color between subspecies.

To identify the Common Tern, look for its pale grey upper wings, which develop a dark feather shaft as the season progresses, creating a grey wedge. The rump and tail are white, and the tail extends no further than the folded wingtips when the bird is standing. The bill is mostly red with a black tip or entirely black, depending on the subspecies. In non-breeding adults, the forehead and underparts become white, and the bill turns black.

Common Terns are found nesting on flat, poorly vegetated surfaces close to water, such as beaches, islands, and artificial substrates like floating rafts. They adapt to a variety of habitats, from the taiga to tropical shores, and avoid excessively rainy, windy, or icy areas.

This species has a wide breeding range, encompassing Europe, North Africa, Asia, and North America. It migrates to winter along the coasts of Central and South America, Africa, and southern Asia, with some populations remaining partially migratory in the Caribbean.

Common Terns are agile flyers, capable of rapid turns, hovering, and vertical take-off. They are known for their powerful, direct flight and can fly at speeds averaging 30 km/h, increasing during migration. They breed in colonies, often alongside other seabird species, and exhibit strong territorial behavior.

The Common Tern has a distinctive alarm call, a KEE-yah, and a repertoire of other vocalizations used for communication within the colony and with their chicks. Parents and chicks recognize each other's calls, aiding in maintaining family bonds.

Breeding involves aerial courtship displays and ground rituals. Nests are shallow scrapes, sometimes lined with debris. Clutch size is typically three eggs, camouflaged with blotchy patterns. Both sexes incubate, and chicks fledge in 22–28 days. Adults are defensive of their nest and young, often harassing intruders.

The Common Tern can be confused with the Arctic Tern, Roseate Tern, and Forster's Tern, but differences in plumage details, leg and bill color, and vocalizations aid in distinguishing them.

The diet consists mainly of fish, which they catch by plunge-diving, but may also include molluscs, crustaceans, and large insects. They forage up to 15 km from the breeding colony and may follow schools of fish or predatory fish to locate prey.

The Common Tern is classified as Least Concern, with a large population and extensive breeding range. However, threats such as habitat loss, pollution, and disturbance have led to declines in some areas, particularly in North America. Conservation efforts include habitat management and protection from human disturbance.