Thursday, 10 June 2021
9-6-2021 MARJAL DE INTERIOR, ALBUFERA - 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.
The Squacco Heron is a tawny buff brown heron with a streaked head and back, and in breeding a black and white mane.
Adult: The adult nonbreeding Squacco Heron has a head that is finely streaked in black, brown, and grey, forming a modest crown but no elongated plumes in nonbreeding season. The relatively large and powerful bill is pale green yellow with a black tip and top. The lores are dull yellow green. The irises are yellow. The hind neck, like the head, is finely streaked in black, brown and grey. The upperparts are buff brown with slight tawny tinge. The wings are white and are mostly concealed at rest by the back plumes. The plumes are shorter than in the breeding season. The rump and tail are white. Foreneck and breast are bright buff coarsely streaked in dark brown. The remaining underparts are white. The relatively short legs and the feet are dull yellow green.
In breeding plumage, the upper parts become brighter and deeper. The crown is a mane of yellow buff or straw-colored feathers. The crown feathers are slightly elongated (1-5 cm) and are bordered with black. Several very elongated feathers (13-14 cm long) occur on the back of the crown. These are white bordered with black, and extend over the upper back. The lores are green or blue. The lower neck and back plumes are golden to cinnamon buff. The foreneck and breast are red gold. During courtship, the bill becomes bright blue except for the dark to black tip. The lores turn briefly blue before reverting via emerald to yellow green. The irises in courtship are richer yellow. The back is pink brown, with longest back feathers being golden and drooping over the wings. The legs are bright red in courtship, fading to pink after pairing. The other soft parts colors return to normal after the eggs are laid.
Variation: The sexes are alike. Geographic variation is not recognized taxonomically. South and central African birds were once considered recognized as the subspecies paludivaga.
9-6-2021 LAGUNA DE SAMERUC, ALBUFERA - NOMAD DRAGONFLY (FEMALE) (Sympetrum fonscolombii)
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The red-veined darter or nomad (Sympetrum fonscolombii) is a dragonfly of the genus Sympetrum.
Sympetrum fonscolombii was named under the protonym Libellula fonscolombii by the Belgian entomologist Edmond de Sélys Longchamps, in 1840, in honor of the French entomologist Étienne of Fonscolombe (hence the species name). Its name is sometimes spelt fonscolombei instead of fonscolombii but Askew (2004) gives the latter as the correct spelling.
Sympetrum fonscolombii can reach a body length of 38–40 millimetres (1.5–1.6 in). This species is similar to other Sympetrum species but a good view with binoculars should give a positive identification, especially with a male.
9-6-2021 MARJAL DE INTERIOR, ALBUFERA - BLACK HEADED GULL (Chroicocephalus ridibundus)
The Black-headed Gull (Chroicocephalus ridibundus) is a common, adaptable Eurasian gull known for its dark brown summer hood (not truly black) that disappears in winter, leaving white heads with dark ear spots.
These sociable birds live near freshwater and coastal wetlands, feed on insects, worms, fish, and human scraps, nest on the ground in colonies, and get their Latin name, "ridibundus" (laughing), from their distinctive calls.
9-6-2021 MONTANYETA DEL SANS, ALBUFERA - GREY HERON (Ardea cinerea)
The Grey Heron is a distinctive species with grey, black, and white plumage. It is often seen along rivers or lake margins, or standing in flooded fields.
In flight their large size, impressive wingspan, long legs, and folded neck give them an unmistakable silhouette. Largely silent away from colonies, flight is sometimes accompanied by a harsh 'kraank' call.
Grey Herons gather to nest in treetop sites called heronries, some of which have been occupied for many decades. These have been monitored in the UK since 1928 through the Heronries Census. Overall the UK's breeding population has increased, with numbers peaking in the early 2000, but with some more recent declines.
Grey Herons are large, solitary, or colonial wading birds known for their patient hunting, standing perfectly still in shallow water before striking fish and amphibians with their dagger-like bills. They are active at dawn and dusk, frequently breeding in large, loud colonies called heronries, often in tall trees.
Hunting and Feeding Behaviour
Wait-and-Strike: They are primarily ambush predators, standing motionless—often on one leg—to wait for prey, or stalking slowly through water, this is from Animal Diversity Web.
Diet: While they eat fish, frogs, small mammals, insects, and eels, they are opportunistic and will visit garden ponds for easy prey.
Handling Prey: Larger prey is stabbed or shaken to death. They often manipulate prey to swallow it head-first, this is from the BDI.
Active Hunting Times: Main hunting occurs at dawn and dusk, though they can be active throughout the day.
9-6-2021 MONTANYETA DEL SANS, ALBUFERA - 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.
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 scientific name comes from Latin ardeola, a small heron (ardea ), and ralloides, Latin rallus, a rail and Greek -oides, "resembling".
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.
Wednesday, 9 June 2021
9-6-2021 CREU DE LONGA, ALBUFERA - LITTLE BITTERN (Ixobrychus minutus)
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Little Bitterns were once widespread in Central Europe. In the meantime it is a poorly distributed breeding bird of the lowlands, sporadically up to low mountain ranges. It occurs from Europe (without regular breeding in Great Britain, Ireland or Scandinavia) to West Siberia up to 56° N. It also occurs in North Africa and southern Iran and south of the Sahara to southern Africa. Isolated populations also exist in Madagascar and Australia. The total population of Europe is about 60,000-120,000 breeding pairs, with occurrences of> 5000 breeding pairs in Russia, Ukraine, Romania and Turkey. In Central Europe (around 2000) about 5300-7800 pairs are breeding, most of it in Hungary. The formerly large population in Germany has decreased to just over 100 breeding pairs. However, inventory information is particularly unreliable for this very secret species.
The little bittern is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds applies.
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The little bittern is crepuscular, skulking and normally solitary. It feeds on fishes, amphibians and insects which are caught within reedbeds or at their edges by the bird slowly stalking the prey. The male claims a territory in the Spring, advertising his presence with a deep barking or croaking call and the monogamous pair remain together for at least one breeding season. Eggs are laid in a nest situated in dense reedbeds, rushes or bushes above the water from the middle of May and there is a single brood which is normally 5-6 eggs. These are incubated for 17–19 days and the chicks are fledged after 25–30 days.
In Europe the little bittern is a migratory species, crossing the Mediterranean from Africa in the early Spring and arriving in their breeding wetlands from mid April onwards. The return to Africa occurs in August and September and there are normally only a few juveniles left in Europe by October. The European breeders migrate as far south as the Eastern Cape and Transvaal.
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The little bittern or common little bittern (Ixobrychus minutus ) is a wading bird in the heron family, Ardeidae. Ixobrychus is from Ancient Greek ixias, a reed-like plant and brukhomai, to bellow, and minutus is Latin for "small".
The little bittern has a length of 33–38 centimetres (13–15 in) and a wing span of 52–58 centimetres (20–23 in). It is the smallest of the breeding herons of Europe and is characterised by its tiny size, long and sharp bill and thick neck. The males are distinctively patterned and both sexes show pale forewing panels. The males have black with a faint green sheen on the crown, nape, back, tail and scapulars. The underparts are pale buff and the wing has a pinkish buff oval shaped panel which contrasts with the otherwise black wings and is formed by the inner wing coverts. The underwing is completely whiteish in colour. The female is duller than the male and has brownish black upperparts with paler feather margins visible at close range. The underparts of the female are not as clean as those of the male and are streaked with dark buff and brown. The female's wing panel is less obvious than the male's. The juveniles are duller and more rufous than the females and are more heavily streaked on both their upperparts and underparts, including their wing coverts.
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The little bittern is native to the Old World, breeding in Africa, central and southern Europe, western and southern Asia, and Madagascar. Birds from temperate regions in Europe and western Asia are migratory, wintering in Africa and further south in Asia, while those nesting in the tropics are sedentary. It is rare north of its breeding range.
In Britain there were intermittent reports of breeding in the nineteenth century, and again in 1946 and 1957, but none of these records were proven. The first proven British breeding record is from Yorkshire in 1984, and the second from the Avalon Marshes in Somerset in 2010, by 2017 this species had been present in this area for nine consecutive years.
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The little bittern is crepuscular, skulking and normally solitary. It feeds on fishes, amphibians and insects which are caught within reedbeds or at their edges by the bird slowly stalking the prey. The male claims a territory in the Spring, advertising his presence with a deep barking or croaking call and the monogamous pair remain together for at least one breeding season. Eggs are laid in a nest situated in dense reedbeds, rushes or bushes above the water from the middle of May and there is a single brood which is normally 5-6 eggs. These are incubated for 17–19 days and the chicks are fledged after 25–30 days.
Minutus is migratory across most of its breeding range and has a significant post breeding dispersal. Birds in Europe move south in August–October. They fly singly and in small groups at night. Western birds move through Italy, Spain and France and along the Atlantic coast (Nankinov 1999). They cross the Mediterranean and Sahara in a broad wave. Birds from the east cross Israel, Iraq, Arabia, and Egypt, also in a broad front. Movement in Africa is less clear. Return migration is in March–April. Birds regularly overshoot and land north of the breeding range.
Tuesday, 8 June 2021
28-5-2021 MERIDA, ESTEMADURA - COMMON WOOD PIGEON (Columba palumbus)
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The common wood pigeon (Columba palumbus), also known simply as the wood pigeon, is a large pigeon native to the western Palearctic. It belongs to the genus Columba, which includes closely related species such as the rock dove (Columba livia). It has a flexible diet, feeding mainly on plant material, including cereals, and is therefore considered an agricultural pest. Wood pigeons are extensively hunted over much of their range, but this does not appear to have a major impact on their population numbers.
In the colder northern and eastern parts of Europe and western Asia the common wood pigeon is a migrant, but in southern and western Europe it is a well distributed and often abundant resident. In Great Britain wood pigeons are commonly seen in parks and gardens and are increasingly seen in towns and cities. In May 2019, a single wood pigeon was sighted in La Romaine, Quebec, Canada, making it the only known record of the species in the Americas.
28-5-2021 MERIDA, LA MANCHA - GLOSSY IBIS (Plegadis falcinellus)
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The Glossy Ibis, Plegadis falcinellus, is a wading bird of the family Threskiornithidae, known for its striking, sickle-shaped bill. This mid-sized ibis measures 48–66 cm in length, with a wingspan of 80–105 cm. Breeding adults boast reddish-brown bodies and iridescent bottle-green wings, while non-breeders and juveniles display a more subdued coloration. The species is characterized by a brownish bill, dark facial skin with blue-gray to cobalt blue borders, and red-brown legs. In flight, the ibis extends its neck and exhibits a graceful V formation.
When identifying the Glossy Ibis, look for its unique glossy feathers and the distinct shape of its bill. The bird's flight pattern is also a telltale sign, as it flies with its neck outstretched, unlike herons. Listen for its various croaks and grunts, particularly the hoarse grrrr sound during the breeding season.
The Glossy Ibis favors freshwater or brackish wetlands with tall, dense emergent vegetation such as reeds, papyrus, or rushes, and low trees or bushes. It can also be found in lagoons, floodplains, wet meadows, swamps, reservoirs, sewage ponds, rice paddies, and irrigated farmland. Coastal habitats like estuaries and salt marshes are less common for this species.
27-5-2021 MERIDA, ESTEMADURA - EURASIAN HOOPOE (Upupa epops)
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The Eurasian hoopoe, with its scientific name Upupa epops, is a bird of unmistakable appearance. It boasts a warm cinnamon plumage, contrasted by striking black and white wings, and a prominent black-tipped, fan-like crest which it can raise and lower. Its tail features a broad white band across a black background. The hoopoe's long, narrow bill curves downwards, adept for probing the soil, and is black with a fawn base.
When identifying the Eurasian hoopoe, look for its unique silhouette, characterized by its long, tapering bill and erectile crest. In flight, its broad and rounded wings display a bold black and white pattern, and its undulating flight is reminiscent of a large butterfly. The hoopoe's size ranges from 25 to 32 cm in length, with a wingspan of 44 to 48 cm, and it weighs between 46 and 89 grams.
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The hoopoe is adaptable, favoring habitats with bare or lightly vegetated ground for foraging and vertical surfaces with cavities for nesting. These can include heathlands, wooded steppes, savannas, grasslands, and forest glades.
This species is native to Europe, Asia, and the northern half of Africa. It is migratory in the northern parts of its range, with European and north Asian birds wintering in the tropics. African populations tend to be sedentary throughout the year.
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While the hoopoe's appearance is quite distinctive, its call can be confused with that of the Himalayan cuckoo in certain regions.
The hoopoe's diet consists mainly of insects, but it may also consume small reptiles, frogs, seeds, and berries. It uses its bill to probe the soil for larvae, pupae, and insects, which are then beaten against a surface to remove indigestible parts.
The Eurasian hoopoe is classified as "Least Concern" by the IUCN. However, there has been a noted decline in populations since 2008, attributed to habitat loss and over-hunting in certain areas. Conservation efforts are in place in regions where the species is threatened.
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