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Sunday, 28 May 2017

23-3-2017 TROGON LODGE, COSTA RICA - PURPLE THROATED MOUNTAIN GEM HUMMINGBIRD


The Purple-throated Mountaingem, scientifically known as Lampornis calolaemus, is a diminutive and vibrant species of hummingbird. Measuring between 10 to 11.5 cm in length and weighing a mere 4.5 to 6 grams, these birds are adorned with a medium-length straight black bill, a distinctive white to pale buff stripe behind the eye, and a fairly long tail that adds to their elegant appearance.

Adult males of the nominate subspecies boast a glittering emerald green to bluish green forehead and crown, with metallic bronze-green upperparts that transition to bluish or grass green on the uppertail coverts. Their faces are dusky bronze green, and they feature a striking metallic violet or purple gorget. The breast shines with bright metallic green, while the flanks and belly are a more subdued bronzy green or gray. The undertail coverts are deep bronzy gray with paler gray margins, and the tail is a dull blue-black.


Adult females present bright metallic green upperparts with a bluish tinge on the uppertail coverts and a more bronzish hue elsewhere. Their faces are predominantly blackish, and the throat, breast, and belly are tawny yellow, transitioning to dull white to tawny buff on the undertail coverts. The central tail feathers and the upper half of the others are dull metallic green or bronze green, with the lower half of the outer tail feathers mostly black with pale gray tips.

The Purple-throated Mountaingem inhabits humid montane evergreen forests and cloudforests, preferring steep slopes and broken terrain. In central Costa Rica, they range from elevations of 1,200 to 2,500 meters, and can be found as low as 800 meters in the northern regions.


This species is found in Costa Rica, Nicaragua, and Panama, with three subspecies distributed across different regions. L. c. pectoralis resides from southwestern Nicaragua to northwestern Costa Rica, L. c. calolaemus in northern and central Costa Rica, and L. c. homogenes in western Panama and possibly southern Costa Rica.

Post-breeding season, some Purple-throated Mountaingems descend to elevations as low as 300 meters. Males are known to fiercely defend their feeding territories, which include patches of flowers, from both conspecifics and other hummingbird species.

The song of the Purple-throated Mountaingem is a high, thin, and dry medley of sputtering and warbling notes. Their calls are sharp and penetrating, often described as "trrrt" or a buzzy "zeet" or "zeep," with higher-pitched, scratchy, chattering notes during interactions.


Breeding occurs from October to April, coinciding with the rainy season. Females single-handedly undertake nest building, incubation, and care for the nestlings. The nest is a thick-walled open cup adorned with moss and lichen, typically situated about 2 meters above ground. Incubation lasts 17 to 18 days, with fledging occurring 22 to 23 days post-hatch.

The Purple-throated Mountaingem primarily feeds on nectar, with males defending their feeding territories vigorously. Females, less territorial, often feed by trap-lining. They are the primary pollinators of certain Rubiaceae species. Insects also form part of their diet, with males capturing them by hawking from a perch and females employing hover-gleaning tactics.

The IUCN has classified the Purple-throated Mountaingem as Least Concern. The population, estimated between 50,000 and 500,000 mature individuals, is believed to be decreasing. However, despite some habitat alteration by humans, much of their habitat remains intact, and the species has shown strong resilience to these changes.

Saturday, 27 May 2017

15-11-2015 MONTE CORONA, VALENCIA - EGYPTIAN LOCUST (Anacridium aegyptium)


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

Anacridium aegyptium is one of the largest European grasshoppers. Adult males grow up to 30–56 mm (1.2–2.2 in) long, while females reach 46–70 mm (1.8–2.8 in) in length. Their bodies are usually gray, brown, or olive-coloured, and their antennae are relatively short and robust. The tibiae of the hind legs are blue, while the femora are orange. The hind femora have characteristic dark marks. They are also easily identified by their characteristic eyes, which have vertical black and white stripes. Their pronota show a dorsal orange stripe and several small white spots. The wings are clear with dark marks.
This species is a folivore, essentially feeding on leaves of various plants. It is a solitary species, harmless to crops. Adults are mainly seen in August and September, but they are active throughout the year. After mating, these grasshoppers overwinter as adults. Spawning occurs in spring just under the soil surface and the nymphs appear in April. These grasshoppers undergo several molts. Nymphs differ from adults in appearance; their color varies from yellow to bright green and ocher and the wings are absent or small, as they are gradually developed after each molt.

15-11-2015 MONTE CORONA - COAL TIT (Periparus ater)


The Coal tit (Periparus ater) is a small passerine bird widespread and common resident breeder throughout the temperate to subtropical Palearctic, including North Africa.

The Coal tit has a distinctive large white nape spot on its black head. The head, throat, and neck of the adult are glossy blue-black, setting off the off-white sides of the face (tinged grey to yellow depending on subspecies) and the brilliant white nape; the white tips of the wing coverts appear as two wingbars. The underparts are whitish shading through buff to rufous on the flanks. The bill is black, the legs lead-colored, and the irides dark brown. The young birds are duller than the adults, lacking gloss on the black head, and with the white of nape and cheeks tinged with yellow.


Coal tits are found throughout Europe, Asia, and North Africa. They are all-year residents throughout almost all range, making only local movements in response to particularly severe weather; only the Siberian birds have a more regular migration. Coal tits prefer humid conifer forests but also frequent shrubland, conifer plantations, gardens, and urban areas.

Coal tits are social birds and often form small flocks in winter with other tits. They resemble other tits in acrobatic skill and restless activity, though they more frequently pitch on a trunk, and in little hops resemble a treecreeper. Coal tits are active during the day spending most of their time searching for food trees. They also visit gardens to feed on a variety of foods put out, particularly sunflower seeds. While searching for food, Coal tit flocks keep contact with incessant short 'dee' or 'see-see' calls. Their song is a strident 'if-he, if-he, if-he', heard most frequently from January to June, but also in autumn. The song resembles that of the Great tit, but much faster and higher in pitch. North African birds also have a 'currr' call similar to that of the European crested tit which is not found in Africa.


Coal tits breed once per year between March and late July. They prefer to nest in a hole in a rotting tree stump, often low down, and the nest is deep within the hole; holes in the ground, burrows of mice or rabbits, chinks between the stones in walls, old nests of Pica magpies or other large birds, and squirrel dreys are also occupied. The materials, moss, hair, and grass, are closely felted together, and rabbit fur or feathers are added for the lining. The female lays 7 to 11 red-spotted white eggs and incubates them for 14-16 days. The chicks hatch blind and helpless and remain in the nest for about 14 to 19 days.


Being common and widespread, Coal tits are not considered threatened at present; however, in central Europe, they experience a shortage of insect prey caused by industrial pollution.

Population number
According to the IUCN Red List, the total population size of the Coal tit is 90,000,000-164,999,999 mature individuals. In Europe, the breeding population consists of 15,900,000-28,800,000 pairs, which equates to 31,800,000-57,500,000 mature individuals. Currently, this species is classified as Least Concern (LC) on the IUCN Red List but its numbers today are decreasing.

21-5-2017 PEGO MARJAL, ALICANTE - GREATER SHORT TOED LARK (Calandrella brachydactyla)


The greater short-toed lark (Calandrella brachydactyla ) is a small passerine bird. The current scientific name is from Ancient Greek. The genus name, Calandrella, is a diminutive of kalandros, the calandra lark, and brachydactila is from brakhus, "short", and daktulos, "toe".

It breeds in southern Europe, north-west Africa, and across the Palearctic from Turkey and southern Russia to Mongolia. During migration they form large, tight flocks that move in unison; at other times they form loose flocks.

Several subspecies have been named but there is considerable geneflow and the species itself forms part of a larger complex. This is a small pale lark, smaller than the skylark. It is dark-streaked greyish-brown above, and white below, and has a strong pointed bill that is pinkish with a grey culmen. It has a pale supercilium, dark patches on each side of its neck and a dark tail. Some birds in the west of the range have a rufous crown. The sexes are similar. The greater short-toed lark is paler than the Mongolian short-toed lark which also has a shorter bill. In winter they fly in large and compact flocks that swing in synchrony. Care must be taken to distinguish this species from other similar Calandrella larks, such as the Mediterranean short-toed lark.


The nominate form breeds in Europe (Iberia, France, Italy, the Balkans and Romania) and winters in Africa. Subspecies hungarica breeds in the eastern parts of Europe while rubiginosa breeds in north-western Africa. Subspecies hermonensis (sometimes including woltersi ) breeds in Turkey, Syria and Egypt. Subspecies artemisiana (considered by some to be synonymous with longipennis ) breeds in Asia Minor and winters in southern west Asia. Subspecies longipennis breeds in Ukraine, Mongolia and Manchuria and winters in South Asia mainly in the drier zone of north-western India.

The song varies between a dry twittering and a more varied and imitative melody. Flocks will often fly together to water in the mornings at favourite spots. In the evenings they roost in open ground, with each bird squatting in a small depression made in the soil.

26-5-2017 MARJOL DE MOROS, VALENCIA - SMALL WHITE BUTTERFLY (Pieris rapae)


Pieris rapae is a small- to medium-sized butterfly species of the whites-and-yellows family Pieridae. It is known in Europe as the small white, in North America as the cabbage white or cabbage butterfly, on several continents as the small cabbage white, and in New Zealand as the white butterfly. The butterfly is recognizable by its white color with small black dots on its wings, and it can be distinguished from P. brassicae by its larger size and the black band at the tip of its forewings.


The caterpillar of this species, often referred to as the "imported cabbageworm", is a pest to crucifer crops such as cabbage, kale, bok choy and broccoli. Pieris rapae is widespread in Europe and Asia; it is believed to have originated in the Eastern Mediterranean region of Europe, and to have spread across Eurasia thanks to the diversification of brassicaceous crops and the development of human trade routes. Over the past two centuries, it spread to North Africa, North America, New Zealand, and Australia, as a result of accidental introductions.

 The species has a natural range across Europe, Asia, and North Africa. It was accidentally introduced to Quebec, Canada, around 1860 and spread rapidly throughout North America. The species has spread to all North American life zones from Lower Austral/Lower Sonoran to Canada. Estimates show that a single female of this species might be the progenitor in a few generations of millions. It is absent or scarce in desert and semidesert regions (except for irrigated areas). It is not found north of Canadian life zone, nor on Channel Islands off the coast of southern California. By 1898, the small white had spread to Hawaii; by 1929, it had reached New Zealand and the area around Melbourne, Australia, and found its way to Perth as early as 1943. It does not seem to have made it to South America.

26-5-2017 MARJAL DE MOROS, VALENCIA - RED VEINED DARTER DRAGONFLY (MALE) (Sympetrum fonscolombii)


The red-veined darter or nomad(Sympetrum fonscolombii) is a dragonfly of the genus Sympetrum.

There is genetic and behavioural evidence that S. fonscolombii is not closely related to the other members of the genus Sympetrum and it will at some time in the future be removed from this genus.

Sympetrum fonscolombii is a widespread and common species in much of central and southern Europe including most Mediterranean islands, North Africa, the Middle East, Mongolia, south-western Asia, including the Indian Subcontinent, the Indian Ocean Islands and Sri Lanka. In Europe it is resident in the south of its range but in some years it migrates northward. From the 1990s onwards has increasingly been found in northwest Europe, including Belgium, Sweden, Finland, Poland, Britain and Ireland. It is the only Libellulidae to be found in the Azores and it is also found on the Canary Islands and Madeira.


It breeds in a wide range of habitats including marshes, lakes, ponds, permanent and seasonal rivers. It is able to recolonize dry areas after a rainfall.

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.

Males have a red abdomen, redder than many other Sympetrum species. The frons and the thorax are red-brown. The eyes are brown above and blue/grey below. The wings have red veins and the wing bases of the hind-wings are yellow. The pterostigma is pale yellow with a border of black veins.

Female are similar but the abdomen is ochre yellow, not red, with two black lines along each side. The wings have yellow veins at the costa, leading edge and base, not red veins as found in the males. The legs of both sexes are mostly black with some yellow.

Immature males are like females but often with more red and a single line along each side of the abdomen.

26-5-2017 MARJAL DE MOROS, VALENCIA - RED VEINED DARTER DRAGONFLY (FEMALE) (Sympetrum fonscolombii)


The red-veined darter or nomad (Sympetrum fonscolombii) is a dragonfly of the genus Sympetrum.

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.


Males have a red abdomen, redder than many other Sympetrum species. The frons and the thorax are red-brown. The eyes are brown above and blue/grey below. The wings have red veins and the wing bases of the hind-wings are yellow. The pterostigma is pale yellow with a border of black veins.

Female are similar but the abdomen is ochre yellow, not red, with two black lines along each side. The wings have yellow veins at the costa, leading edge and base, not red veins as found in the males. The legs of both sexes are mostly black with some yellow.

Immature males are like females but often with more red and a single line along each side of the abdomen.

Male S. fonscolombii can be mistaken for Crocothemis erythraea as both are very red dragonflies with yellow bases to the wings, red veins and pale pterostigma. However C. erythraea has no black on the legs, a broader body and no black on the head. Also C. erythraea females do not oviposit in tandem. The gestalt image of these two species is different and with some experience are easy to tell apart.


Sympetrum fonscolombii is a widespread and common species in much of central and southern Europe including most Mediterranean islands, North Africa, the Middle East, Mongolia, south-western Asia, including the Indian Subcontinent, the Indian Ocean Islands and Sri Lanka. In Europe it is resident in the south of its range but in some years it migrates northward. From the 1990s onwards has increasingly been found in northwest Europe, including Belgium, Sweden, Finland, Poland, Britain and Ireland. It is the only Libellulidae to be found in the Azores and it is also found on the Canary Islands and Madeira.

It breeds in a wide range of habitats including marshes, lakes, ponds, permanent and seasonal rivers. It is able to recolonize dry areas after a rainfall.

Sympetrum fonscolombii can be seen on the wing throughout the year around the Mediterranean and in the south of its range, however, its main flight period is May to October and it is scarce during the winter months. It is a territorial species with the males often sitting on an exposed perch.

After copulation the pair stay in tandem for egg laying and pairs can be seen over open water with the female dipping her abdomen into the water depositing eggs. Pairs are known to fly over the sea in tandem dipping into the salt water where the eggs soon perish. The eggs and larvae develop within a few months and S. fonscolombii unlike most other European dragonflies has more than one generation a year. Some larvae overwinter.

26-5-2017 MARJOL DE MOROS, VALENCIA - RED ADMIRAL BUTTERFLY (Vanessa atalanta)


Vanessa atalanta, the red admiral or, previously, the red admirable, is a well-characterized, medium-sized butterfly with black wings, red bands, and white spots. It has a wingspan of about 2 inches (5 cm). It was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. The red admiral is widely distributed across temperate regions of North Africa, the Americas, Europe, Asia, and the Caribbean. It resides in warmer areas, but migrates north in spring and sometimes again in autumn. Typically found in moist woodlands, the red admiral caterpillar's primary host plant is the stinging nettle (Urtica dioica); it can also be found on the false nettle (Boehmeria cylindrica). The adult butterfly drinks from flowering plants like Buddleia and overripe fruit. Red admirals are territorial; females will only mate with males that hold territory. Males with superior flight abilities are more likely to successfully court females. It is known as an unusually calm butterfly, often allowing observation at a very close distance before flying away, also landing on and using humans as perches.

26-5-2017 MARJOL DE MOROS, VALENCIA - LITTLE TERN (Sternula albifrons)


The Little Tern, Sternula albifrons, is a diminutive member of the seabird family Laridae. This sprightly bird is easily recognized by its compact body, measuring 21–25 cm in length with a wingspan of 41–47 cm. It is characterized by its white forehead, which is particularly prominent during the breeding season.

When observing the Little Tern, look for its yellow, thin, sharp bill tipped with black, and its matching yellow legs. In breeding plumage, the white forehead contrasts with a black cap, while in winter, the forehead becomes more extensively white, the bill turns black, and the legs appear duller. Its flight is buoyant and graceful, a delight to watch as it hovers over water before diving.

This species is partial to coastal environments, favoring gravel or shingle beaches and islands for breeding. It also frequents inland waterways, adapting to the habitats provided by temperate and tropical regions alike.

The Little Tern is a globe-trotter, breeding across temperate and tropical Europe and Asia, and migrating to subtropical and tropical oceans for the winter. Its range extends as far south as South Africa and Australia, with three recognized subspecies occupying distinct geographical areas.


The Little Tern is a colonial nester, laying two to four eggs directly on the ground. It is fiercely protective of its nest and offspring, ready to dive at intruders with surprising ferocity. Courtship involves the male presenting fish to the female, a tender ritual that strengthens their pair bond.

Listen for a loud, distinctive creaking noise that carries over the sounds of the sea, a call that is unmistakably that of the Little Tern.

Breeding colonies are established on coasts and islands, where the Little Tern's nest can be found on the bare ground. The commitment to their young is evident in their vigilant defense against potential threats.

Adept at plunge-diving, the Little Tern primarily feeds on fish from saline environments. Its hunting technique is a marvel of precision, as it drops from the air into the water to catch its prey.

The Little Tern is currently listed as Least Concern by the IUCN. However, its populations have faced declines due to habitat loss, pollution, and human disturbance, particularly in coastal areas and along European rivers where traditional habitats have been compromised. Conservation efforts are ongoing to protect this species and its habitats, especially along rivers like the Drava where populations are critically threatened. The Little Tern is also a subject of the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA), highlighting the international commitment to its preservation.

26-5-2017 MARJOL DE MOROS, VALENCIA - EURASIAN COOT (Fulica atra)


The Eurasian coot, Fulica atra, also known as the common coot or Australian coot, is a distinctive waterbird with a slaty-black body, a glossy black head, and a striking white bill topped with a white frontal shield. This bird is a member of the Rallidae family, which includes rails and crakes. Both sexes exhibit similar plumage, making them indistinguishable in the field.

Adult Eurasian coots measure 36–38 cm in length with a wingspan of 70–80 cm. Males are slightly heavier than females, weighing around 890 g compared to the females' 750 g. The species is characterized by its white bill and frontal shield, which contrast sharply with its all-black body. Juveniles are paler with a whitish breast and lack the facial shield, which develops fully by one year of age.

The Eurasian coot is found on freshwater lakes and ponds and has adapted well to urban environments, often seen in city parks and gardens with water bodies.

This bird has a broad range across the Old World, including Europe, Asia, Australia, New Zealand, and parts of North Africa. It is a resident in milder regions but migrates south and west from much of Asia during winter.

26-5-2017 MARJOL DE MOROS, 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.

26-5-2017 MARJOL DE MOROS, 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.


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.

The IUCN lists the Black-winged Stilt as Least Concern, indicating a stable global population. However, they are protected under the Agreement on the Conservation of African-Eurasian Migratory Waterbirds, highlighting the importance of international cooperation in their conservation.

26-5-2017 MARJOL DE MOROS, VALENCIA - BLACK WINGED STILT (JUVENILE) (Himantopus himantopus)


Striking large black-and-white wader with a thin, straight bill and bright pink legs, found in wetlands with open shallow water throughout much of Africa and Eurasia, often in brackish habitats. Some populations are migratory, departing northerly breeding grounds for warmer southern regions. Often forms noisy colonies on bare ground near water. Essentially unmistakable throughout much of its range, but compare with Pied Stilt in parts of Southeast Asia. Feeds by wading in water, picking from the water surface with its needle-like bill. In flight, long pink legs stick out far beyond the tail. Calls loudly and stridently, especially when alarmed during the breeding season.


The black-winged stilt (Himantopus himantopus) is a widely distributed, very long-legged wader in the avocet and stilt family Recurvirostridae. Its scientific name, Himantopus himantopus, is sometimes used to generalize a single, almost cosmopolitan species. Alternatively, it is restricted to the form that is widespread in Europe, Asia and Africa, which equals the nominate group of H. himantopus sensu lato. Meanwhile, the black-necked (H. mexicanus) and white-backed stilts (H. melanurus) both inhabit the Americas; the pied stilt (H. leucocephalus) ranges from Australasia and New Zealand. Today, most sources accept between one and four actual species. The taxonomic name Himantopus comes from Greek, meaning "strap-foot" or "thong-foot".

26-5-2017 MARJAL DE MOROS, VALENCIA - BLACK WINGED STILT (FEMALE) (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.

26-5-2017 MARJAL DE MOROS, VALENCIA - BLACK HEADED GULL (Chroicocephalus ridibundus)


The black-headed gull (Chroicocephalus ridibundus) is a small, nimble gull with a wingspan ranging from 94 to 110 cm and a body length of 37 to 44 cm. It weighs between 190 and 400 grams. Despite its name, the adult's summer plumage features a chocolate-brown head, which can appear black from a distance. The body is pale grey, and the primary wing feathers are tipped with black. The bill and legs are a striking red. In winter, the brown head is replaced by a white one with dark spots. Juveniles are mottled with brown spots and have a black band on the tail. There is no sexual dimorphism in plumage.

In flight, the white leading edge of the wing is a distinctive field mark. The summer adult's brown head, red bill, and legs are key identifiers, while the winter plumage features two dark spots on the head. Juveniles can be recognized by their mottled brown pattern and black tail band.

This species nests in colonies on the ground in large reed beds, marshes, or islands within lakes. It is not pelagic and is seldom seen far from coasts.


The black-headed gull breeds across much of the Palearctic, including Europe and coastal eastern Canada. It is migratory, wintering further south, but some remain in the milder westernmost areas of Europe. It is also present in northeastern North America and occasionally seen as far south as Virginia and some Caribbean islands.

Highly gregarious in winter, the black-headed gull is an opportunistic feeder, consuming a wide range of food from insects to carrion. It is known for its "kree-ar" call and displays various behaviors such as eggshell removal from the nest, which is believed to reduce predation risk.


The black-headed gull is a vocal species, particularly in colonies. Its call is a familiar "kree-ar," and its scientific name suggests a laughing sound.

This gull takes two years to reach maturity. First-year birds can be distinguished by a black terminal tail band and a less developed dark hood in summer. Breeding occurs in colonies, and the species is known for its complex social behaviors, including begging coordination between siblings and conspecific brood parasitism.

The black-headed gull can be confused with the similar-looking Bonaparte's Gull in North America.

The diet includes insects, fish, seeds, worms, scraps, carrion, and invertebrates in ploughed fields. It feeds in towns and agricultural areas with equal relish.

The black-headed gull is listed as Least Concern on the IUCN Red List, indicating it is not currently at significant risk of widespread decline.

Individuals synchronize their vigilance activities with nearby conspecifics, depending on the distance between them.

The first recorded sighting in Australia occurred in 1991 at the Broome Sewage Ponds, marking a significant range expansion for the species.

The black-headed gull has been immortalized in Richard Adams' novel "Watership Down" as the character Kehaar and is the official bird of Tokyo, Japan.

26-5-2017 MARJOL DE MOROS, VALENCIA - BLACK HEADED GULL (JUVENILE) (Chroicocephalus ridibundus)


The Black-headed gull (Chroicocephalus ridibundus) is a small and one of the most abundant gulls in much of Europe and Asia, and also in eastern Canada. It displays a variety of compelling behaviors and adaptations. Some of these include removing eggshells from one's nest after hatching, begging co-ordination between siblings, differences between sexes, conspecific brood parasitism, and extra-pair paternity.

The summer adult has a chocolate-brown head (not black, although does look black from a distance), a pale grey body, black tips to the primary wing feathers, and a red bill and legs. The hood is lost in winter, leaving just two dark spots. Immature birds have a mottled pattern of brown spots over most of the body and a black band on the tail. There is no difference in plumage between the sexes. In flight, the white leading edge to the wing is a good field mark. First-year birds have a black terminal tail band, more dark areas in the wings, and, in summer, a less fully developed dark hood.


Black-headed gulls breed in much of Europe, Asia, and in coastal eastern Canada. Most of their populations are migratory and winter further south, but some birds reside in the milder westernmost areas of Europe. Some Black-headed gulls also spend the winter in northeastern North America. They breed in large reed beds or marshes, or on islands in lakes, rivers, lagoons, deltas, and estuaries. They may also occur in ponds, canals, and flood lands, nesting on the heather moors, sand dunes, or beaches. During the winter these birds are found in estuaries with sandy or muddy beaches, ploughed fields, moist grasslands, reservoirs, urban parks, farmland, and gardens.

Black-headed gulls are highly gregarious birds, both when feeding or in evening roosts; they also breed in colonies. They are rarely seen at sea far from coasts. Black-headed gulls are active during the day and feed mainly by taking prey from the surface while swimming, or by dipping the head under the surface. They also walk along the coasts and probe for aquatic prey or catch flying insects on the wings. Black-headed birds are noisy, especially in colonies, with a familiar "kree-ar" call. When feeding they utter a sharp “kek-kek”.

25-5-2017 ALDEAROQUETA, VALENCIA - WALL BROWN BUTTERFLY (Lasiommata megera)


Lasiommata megera, the wall or wall brown, is a butterfly in the family Nymphalidae (subfamily Satyrinae). It is widespread in the Palearctic realm with a large variety of habitats and number of generations a year.

P. megera L. [— xiphie Boisd. pt (45d). Above reddish yellow, with a black mark which traverses the distal band from the cell of the forewing to the abdominal margin of the hindwing, short black stripes crossing the disc and the cell of the forewing.

The species lives in North Africa, Europe, the Caucasus, Asia Minor, the Middle East, western Siberia, northern Tian Shan, Dzungarian Alatau, Kazakhstan and Dzungaria.


Habitats include forest edges and clearings, shrubby areas in ravines and river valleys and sparse woodlands. It is also found in mountain habitats up to 0–3,000 metres (0–9,843 ft) above sea level.

The imago flies from April to October in two or three generations depending on locality and altitude. The larva feeds on grasses in the genera Festuca, Bromus, Deschampsia, Poa, Dactylis and Brachypodium.


"The egg is pale green when first laid, and in shape it is almost spherical, but rather higher than broad; it is finely ribbed and reticulated, but unless examined through a lens it appears to be quite smooth. The caterpillar when full grown is whitish-green, dotted with white. From the larger of these dots on the back arise greyish bristles; the three lines on the back (dorsal and sub-dorsal) are whitish, edged with dark green; the line on the sides (spiracular) is white, fringed with greyish hairs; anal points green, hairy, extreme tips white. Head larger than the first ring (first thoracic segment), green dotted with white and hairy, jaws marked with brownish. The chrysalis is green, with yellow-tinted white markings on the edge of the wing covers and ridges; the spots on the body are yellowish, or sometimes white. Occasionally the chrysalids are blackish, with white or yellow points on the body". 

25-5-2017 ALDEAROQUETA, VALENCIA - SPANISH GATEKEEPER BUTTERFLY (Pyronia bathseba)


Pyronia bathseba, the Spanish gatekeeper, is a butterfly of the family Nymphalidae. It is found on the Iberian Peninsula and in France, Morocco, and Algeria. A similar gatekeeper species is Pyronia tithonus, which is found in northern Europe.

The wingspan is 18–19 mm. The butterfly is on wing from May to July depending on the location.


The larvae feed on Poaceae species, mainly Brachypodium species.

A lovely species with very smart underside hindwing markings.

Identification & Similar species: The white stripe on the underside hindwing is distinctive. Orange upperside with broad brown borders. Males have a large and prominent sex brand in the the basal and discal areas.


Distribution & Flight: North Africa, Iberian peninsula and Mediterranean France. April to July. I've found it in early May in south France at sea level and early July in Morocco at 2200m.

There is only one generation which flies from March to September, something which depends on the altitude of the place. They are more active in May and June.


Habitat & Behaviour: Grassy rocky places usually amongst dry scrub. Generally skulks low down amongst the entwined twigs and branches of scrub and grasses. I've found it on a beach where the only grasses to be found were amongst low scrub that was stabilising the dunes. Frequently hide s from the sun by resting low in bushes or below tufts of grass.Closed wings: The hindwing is brown, and a white stretch which goes across it. Behind it, there is a series of eyespots, which is broken by a light stretch. The forewing is orange, with a double eyespot and a wide grey and brown margin.


Open wings: This species hardly ever stretches the wings. Both sexes are orange with broad brown margins in the shape of an eight, although sometimes male butterflies miss one of the white dots in the centre. There is a series of eyespots on the hindwings. Female butterflies have larger orange sections, as the androconia covers a big part of male wings.

It is common and rather numerous in forests and woodland. In dense forests, it looks for clear areas, such as paths or forest tracks. At midday, when it is rather hot, it rests in shady areas. There can be dozens of butterflies resting or drinking on the flowers of the Helychrisum stoechas or Teucrium lusitanicum. Nevertheless, these are not its caterpillars' foodplants, but gramineous plants, or grasses, such as Mediterranean False-brome (Brachypodium retusum) and Purple False-brome (Brachypodium phoenicoides), or Rough Meadow-grass (Poa trivialis).