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).

25-5-2017 ALDEA ROQUETA, VALENCIA - PAINTED LADY BUTTERFLY (Vanessa cardui)

Vanessa cardui is the most widespread of all butterfly species. It is commonly called the painted lady, or formerly in North America the cosmopolitan.

V. cardui is one of the most widespread of all butterflies, found on every continent except Antarctica and South America. In Australia, V. cardui has a limited range around Bunbury, Fremantle, and Rottnest Island. However, its close relative, the Australian painted lady (V. kershawi, sometimes considered a subspecies) ranges over half the continent. Other closely related species are the American painted lady (V. virginiensis) and the West Coast lady (V. annabella).

The painted lady uses over 300 recorded host plants according to the HOSTS database.

Adult butterflies feed on flower nectar and aphid honeydew.

Male and female. Upperside. Ground-colour reddish-ochreous, basal areas olivescent-ochreous-brown; cilia black, alternated with white, Forewing with an outwardly-oblique black irregular-shaped broken band crossing from middle of the cell to the disc above the submedian vein; the apical area from end of cell and the exterior border also black; before the apex is a short white outwardly-oblique streak and a curved row of four round spots, the second and third being small; a marginal pale lunular line with its upper portion most defined and whitish. Hind-wing with a blackish patch from the costal vein across end of cell, a partly confluent recurved discal band, a submarginal row of lunules, and then a marginal row of somewhat scutiform spots; between the discal band and submarginal lunules is a row of five round black spots, which in some examples show a pale and dark outer ring. Underside. Forewing brighter reddish-ochreous, the apical area and outer margin much paler, the apex being olivescent ochreous-brown; discal irregular band as above, subapical white streak, row of spots and marginal lunules distinct; base of wing and interspace before end of cell white. Hindwing transversely-marbled with olivescent ochreous-brown and speckled with black scales; crossed by basal and discal sinuous whitish or pale fascia and intersected by white veins; an outer-discal row of five ocelli, the upper one smallest and usually imperfect, the second and fifth the largest, the fourth with black centre speckled with blue and ringed with yellow, and the second and fifth also with an outer black ring; submarginal lunules purpurescent-grey, bordered by a whitish fascia; outer margin ochreous. Body olivescent ochreous-brown, abdomen with ochreous bands; palpi blackish above, white beneath; body beneath and legs greyish-white; antennae black above, tip and beneath reddish.

Vanessa cardui spring migration between North Africa and Europe

V. cardui occurs in any temperate zone, including mountains in the tropics. The species is resident only in warmer areas, but migrates in spring, and sometimes again in autumn. It migrates from North Africa and the Mediterranean to Britain and Europe in May and June, occasionally reaching Iceland, and from the Red Sea basin, via Israel and Cyprus, to Turkey in March and April.] The occasional autumn migration made by V. cardui is likely for the inspection of resource changes; it consists of a round trip from Europe to Africa.

For decades, naturalists have debated whether the offspring of these immigrants ever make a southwards return migration. Research suggests that British painted ladies do undertake an autumn migration, making 14,500 km (9,000 mi) round trip from tropical Africa to the Arctic Circle in a series of steps by up to six successive generations. The Radar Entomology Unit at Rothamsted Research provided evidence that autumn migrations take place at high altitude, which explains why these migrations are seldom witnessed. In recent years, thanks to the activity of The Worldwide Painted Lady Migration citizen science project, led by the Barcelona-based Institute of Evolutionary Biology (Catalan: Institut de Biologia Evolutiva), the huge range of migration has begun to be revealed. For example, some butterflies migrated from Iceland to the Sahara desert, and even further south.

V. cardui is known for its distinct migratory behaviour. In California, they are usually seen flying from north to north-west. These migrations appear to be partially initiated by heavy winter rains in the desert where rainfall controls the growth of larval food plants.[18] In March 2019, after heavy rain produced an abundance of vegetation in the deserts, Southern California saw these butterflies migrating by the millions across the state.

Similarly, heavier than usual rain during the 2018-2019 winter seems to have been the cause of the extraordinarily large migration observed in Israel at the end of March, estimated at a billion individual butterflies. Painted lady migration patterns are highly erratic and they do not migrate every year. Some evidence suggests that global climatic events, such as el Niño, may affect the migratory behaviour of the painted lady butterflies, causing large-scale migrations. The first noticeable wave of migration in eastern Ukraine was noted in the 20s of April 2019. From May 15, numbers began to grow and it was possible to observe hundreds of this species in the Kharkiv region of Ukraine, including in the city streets of Kharkiv.

Based on experimental data, the painted lady's migration pattern in northern Europe apparently does not follow a strict north-west heading. The range of headings suggests that migrating butterflies may adjust their migration patterns in response to local topographical features and weather, such as strong wind patterns. Laboratory-raised autumn-generation painted lady butterflies were able to distinguish a southern orientation for a return migration path. According to the same laboratory-based study, when butterflies were isolated from the sun, they were unable to orient themselves in a specific direction, opposed to those that did have access to the sun. This suggests that V. cardui requires a direct view of the sky, implying the use of a solar compass to orient its migratory direction and maintain a straight flight path.

A 2024 Nature Communications article provided the first evidence that the painted lady, or any insect, had traveled across an ocean. Specimens were captured on a beach in French Guiana, outside the painted lady's natural habitat. Pollen grains from the butterflies' bodies matched species of West African shrubs that flowered at the same time of year. The researchers also analyzed the butterflies' genomes and used isotope tracing to confirm that they were born in Europe or Africa. Finally, the study found that the trade wind conditions from Africa to South America were "exceptionally favorable" at that time, which would have allowed the butterflies to be propelled over 2,600 miles (4,200 km)—one of the longest journeys of an insect ever recorded.

Groups of two to eight painted lady butterflies have been observed to fly incircles around each other for about one to five seconds before separating, symbolizing courtship. Groups of butterflies usually will not fly more than 4.5 m (15 ft) away from the starting point. To establish and defend their territories, adult males perch in the late afternoon in areas where females are most likely to appear. Once the male spots a female of the same species, he begins pursuit of her. If the foreign butterfly is a male, the original male will give chase, flying vertically for a few feet before returning to his perch.

V. cardui establishes territories within areas sheltered by hedgerows. Vanessa cardui tend to inhabit sunny, brightly lit, open environments and are often attracted to open areas of flowers and clovers. Adults spend time in small depressions in the ground on overcast days.

25-5-2017 ALDEAROQUETA, VALENCIA - LACHNAIA (Subfamily Cryptocephalinae)

Lachnaia is a genus of leaf beetles in the subfamily Cryptocephalinae, tribe Clytrini. Multiple species in this genus are known to be myrmecophiles, such as the larvae of L. italica.

The leaf beetle genus Lachnaia Dejean, 1836 (Coleoptera, Chrysomelidae, Cryptocephalinae) 

comprises two subgenera (Barathraea Lacordaire, 1848 and the nominotypical subgenus) and includes 

approximately 20 species, nine of which occur in the Iberian Peninsula (PETITPIERRE, 2000; BASELGA 

& RUIZ-GARCÍA, 2007; REGALIN & MEDVEDEV, 2010). 

One remarkable Iberian representative of this genus is Lachnaia (Lachnaia) variolosa (Linnaeus, 

1767), rendered unmistakable by its very conspicuous irregular elytral pits. This species, originally 

described from “Africa” (LINNAEUS, 1767), is currently known from Algeria and Morocco in northern 

Africa (REGALIN & MEDVEDEV, 2010) and from five southern Spanish provinces in Europe (Map 1), 

namely Almería, Cádiz, Granada, Málaga, and Murcia (PETITPIERRE, 2000; LENCINA et al., 2006; 

VALLADARES et al., 2013). In the present contribution, we record L. (L.) variolosa from mainland 

Portugal for the first time, extending its known range to the south-westernmost part of Iberia.

25-5-2017 ALDEAROQUETA, VALENCIA - EURASIAN HUMMINGBIRD HAWKMOTH (Macroglossum stellatarum)

The hummingbird hawk-moth (Macroglossum stellatarum) is a species of hawk moth found across temperate regions of Eurasia. The species is named for its similarity to hummingbirds, as they feed on the nectar of tube-shaped flowers using their long proboscis while hovering in the air; this resemblance is an example of convergent evolution.

The hummingbird hawk-moth was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. As of 2018, its entire genome and mitogenome have been sequenced.

The hummingbird hawk-moth is distributed throughout the northern Old World from Portugal to Japan, but it breeds mainly in warmer climates (southern Europe, North Africa, and points east). Three generations are produced in a year in Spain. There is evidence that the population in the British Isles is actively expanding its range, as numbers have been consistently increasing. In addition, it is believed that this population is becoming resident instead of migratory, as warmer temperatures due to climate change are allowing individuals to overwinter.

It is a strong flier, dispersing widely in the summer. However it rarely survives the winter in northern latitudes (e.g. north of the Alps in Europe, north of the Caucasus in Russia).

23-5-2017 CULLA, VALENCIA - BLACK REDSTART (JUVENILE) (Phoenicurus ochruros)

The Black Redstart (Phoenicurus ochruros) is a small, charismatic passerine bird, exhibiting a blend of dark and vibrant plumage. Males are distinguished by their dark grey to black upperparts and breast, with a striking orange-red rump and tail. Females and juveniles are more subdued in color, with grey to grey-brown feathers and the same vivid tail coloration that is the hallmark of the species.

Adult males are easily identified by their dark upperparts and black breast, contrasting with the orange-red lower rump and tail. The belly and undertail may vary from blackish-grey to orange-red, depending on the subspecies. Females and juveniles are less conspicuous, with overall greyer tones and a distinctive orange-red rump and tail. The presence of pale fringes on the secondaries forms a whitish wing panel in some subspecies.

The Black Redstart has adapted remarkably to urban environments, often found nesting in crevices or holes within buildings. Originally a dweller of stony mountainous regions, it now thrives in industrial areas with similar structural features.

This species is widely distributed across south and central Europe, Asia, and north-west Africa. It is a resident in milder regions, while populations in the northeast migrate to warmer areas during winter.

The Black Redstart is known for its robin-like movements, including quick ducks of the head and body, and frequent tail flicking. Males possess a rattling song and a tick call, adding to their distinctive presence.

The Black Redstart's vocal repertoire includes a variety of calls, which differ among subspecies. The male's song is a rattling melody, while its call is a sharp 'tick', often heard during its active foraging.

Typically monogamous, the Black Redstart begins breeding in mid-April. Nests are built by females in sheltered nooks, lined with soft materials. Clutches consist of 4 to 6 eggs, incubated primarily by the female. Both parents tend to the fledglings, which leave the nest after 12 to 19 days.

23-5-2017 ALDEA ROQUETA, VALENCIA - EURASIAN GOLDEN ORIOLE (Oriolus oriolus)

The Eurasian golden oriole (Oriolus oriolus) is the only member of the Old World oriole family of passerine birds breeding in Northern Hemisphere temperate regions. The name "oriole" was first used in the 18th century and is an adaptation of the scientific Latin genus name, which is derived from the Classical Latin "aureolus" meaning golden. Various forms of "oriole" have existed in Romance languages since the 12th and 13th centuries. Albertus Magnus used the Latin form oriolus in about 1250 and erroneously stated that it was onomatopoeic because of the golden oriole's song. In medieval England, its name, derived from the song, was the woodwele.

Males of this species are golden yellow in color with black wings that have yellow-tipped coverts. Females are almost greenish with a yellowish-white belly. Despite the bright colors of males it's quite difficult to spot these birds in the yellow and green leaves of the canopy due to their secretive habits.

26-5-2017 MARJAL DE MOROS, VALENCIA - KENTISH PLOVER (Charadrius alexandrinus)

The Kentish plover, Anarhynchus alexandrinus, is a diminutive wader of the family Charadriidae. It is a bird of saline lakeshores, lagoons, and coastal regions, where it frequents sand dunes, marshes, semi-arid deserts, and tundra. Exhibiting sexual dimorphism, both sexes have pale plumage with a white underside and a grey/brown back, but males are distinguished by dark incomplete breast bands and head markings.

Adult Kentish plovers possess dark legs and bills. Males, during the breeding season, are adorned with a black head bar, dark breast bands, black ear coverts, and a rufous nape and crown, though variations exist among populations. Females are paler and lack the dark markings. As the breeding season wanes, the differences between sexes diminish. Males typically have longer tarsi and flank feathers, the latter being advantageous for incubation and brood care.

Kentish plovers select breeding habitats with low elevation, sparse vegetation, and high moisture, away from human disturbance. They show a preference for open, moist nesting sites and are known to move chicks to areas with better food availability.

This species boasts a vast geographical range, from North Africa to Central Asia and Europe. It is found in countries such as Senegal, China, Spain, and Austria. Some populations are migratory, wintering in Africa, while others, including various island populations, are resident.

26-5-2017 ALDEAROQUETA, VALENCIA - GREAT TIT (Parus major)

The Great tit (Parus major) is a widespread and common songbird throughout Europe, the Middle East, Central Asia, and east across the Palearctic to the Amur River, south to parts of North Africa. It has adapted well to human changes in the environment and is a common and familiar bird in urban parks and gardens. It is also an important study species in ornithology.

The Great tit has a distinctive appearance that makes it easy to recognize. The nominate race has a bluish-black crown, black neck, throat, bib, and head, and white cheeks and ear coverts. The breast is bright lemon-yellow and there is a broad black mid-line stripe running from the bib to the vent. There is a dull white spot on the neck turning to greenish yellow on the upper nape. The rest of the nape and back are green-tinged with olive. The wing-coverts are green, and the rest of the wing is bluish-grey with a white wing bar. The tail is bluish-grey with white outer tips. The plumage of the female is similar to that of the male except that the colors are overall duller.

26-5-2017 MARJAL DE MOROS, VALENCIA - TREE PIPIT (Anthus trivialis)

The Tree Pipit, Anthus trivialis, is a modestly adorned avian, cloaked in streaks of brown with black markings adorning its white underbelly and a buff breast. Its bill, more robust than that of its kin, and the contrast between its buff breast and white belly are distinguishing features. This species is known to alight upon the boughs of trees with greater frequency than its relative, the Meadow Pipit.

To identify the Tree Pipit, look for a small bird with a heavy bill and a distinct contrast between its buff breast and white belly. Its upperparts are streaked brown, and it has black markings on its underparts. The Tree Pipit can be differentiated from the slightly smaller Meadow Pipit by these characteristics.

The Tree Pipit favors open woodlands and scrublands for its breeding grounds. It thrives in open woodland adjacent to moorland or in oak woodlands with a spacious structure, requiring significant thinning to achieve a desirable open character.

This species breeds across most of Europe and the Palearctic, reaching as far east as the East Siberian Mountains. It is a long-distance migrant, wintering in Africa and southern Asia.

25-5-2017 USERES, VALENCIA - RED RUMPED SWALLOW (Cecropis daurica)

The Red-rumped Swallow (Cecropis daurica) is a small, graceful passerine bird, a member of the swallow family. It is characterized by its blue upperparts and dusky underparts, with a distinctive pale or reddish rump, face, and neck collar. Unlike the Barn Swallow, it lacks a breast band but features black undertails. Its wings are broad yet pointed, allowing for swift and agile flight.

To identify the Red-rumped Swallow, look for its darker underparts compared to the Barn Swallow, and the absence of a breast band. The rump is pale or reddish, providing a stark contrast to the blue upperparts. The bird's flight is fast, with frequent swoops as it pursues airborne insects.

This species is often found in open hilly country, where it can be seen gracefully hawking for insects over grasslands. It is also known to adapt to human structures, nesting under cliff overhangs, on buildings, and bridges.

The Red-rumped Swallow has a wide distribution, breeding in temperate southern Europe and Asia, from Portugal and Spain to Japan, India, Sri Lanka, and tropical Africa. While the Indian and African populations are resident, European and other Asian birds are migratory, wintering in Africa or India.

These swallows are gregarious outside the breeding season, often seen in large numbers on the plains of India. They do not typically form large breeding colonies but are known to be social. Their flight is characterized by swift, agile movements as they feed on insects in the air.

The Red-rumped Swallow communicates with a series of chirps and trills, a delightful symphony that fills the air especially during the breeding season.

The Red-rumped Swallow constructs quarter-sphere nests with a tunnel entrance, using mud collected in their beaks. They lay 3 to 6 eggs and prefer to nest under cliff overhangs or on human-made structures.

The Red-rumped Swallow may be confused with the Barn Swallow but can be distinguished by its darker underparts, lack of a breast band, and the pale or reddish rump.

This species is an aerial insectivore, feeding on insects caught in flight. They are adept at catching their prey mid-air, often following cattle or taking advantage of grass fires to find insects.

The Red-rumped Swallow is classified as Least Concern by the IUCN. It has a vast range and a population in the millions, with no significant declining trends observed. In Europe, the species is expanding its range northward.

23-3-2017 TROGON LODGE COSTA RICA - ONE SPOTTED PREPONA BUTTERFLY (Archaeoprepona demophon)

Archaeoprepona demophon, the one-spotted prepona, banded king shoemaker, or demophon shoemaker is a butterfly belonging to the family Nymphalidae.

The wingspan reaches about 54–58 millimetres (2.1–2.3 in). The uppersides of the wings are black, with bright pale blue transverse bands. The undersides are pale brown with a clearer band in the middle of the hindwings and several dark small dots on the margins.

The butterfly larva generally feed on plants of the genus Annona (Annonaceae) and on Malpighia glabra (Malpighiaceae). Adults visit rotten fruit or dung.

This species can be found in Mexico, Central America, the West Indies, and northern portions of South America.

Archaeoprepona demophon prefers the edges of forest canopy and subcanopy.

24-5-2017 CULLA, 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.

24-5-2017 ALDEA ROQUETA, VALENCIA - SARDINIAN WARBLER (MALE) (Sylvia melanocephala)

The Sardinian warbler (Curruca melanocephala ) is a common and widespread typical warbler from the Mediterranean region. Like most Curruca species, it has distinct male and female plumages. The adult male has a grey back, whitish underparts, black head, white throat and red eyes. Plumages are somewhat variable even in the same locality, with the intensity of a reddish hue on upper- and/or underside that varies from absent to (in some subspecies) pronounced. The female is mainly brown above and buff below, with a grey head. The Sardinian warbler's song is fast and rattling, and is very characteristic of the Mediterranean areas where this bird breeds.

It breeds in the southernmost areas of Europe and just into Asia in Turkey and the eastern end of the Mediterranean. This small passerine bird, unlike most "warblers", is not particularly migratory, but some birds winter in north Africa, and it occurs as a vagrant well away from the breeding range, as far as Great Britain.

This is a bird of open country and cultivation, with bushes for nesting. The nest is built in low shrub or brambles, and 3-6 eggs are laid. Like most "warblers", it is insectivorous, but will also take berries and other soft fruit.

23-3-2017 SAN GERARDO DE DOTA COSTA RICA - RED HEADED BARBET (FEMALE) (Eubucco bourcierii)

The red-headed barbet (Eubucco bourcierii) is a species of bird in the family Capitonidae, the New World barbets. It is found in Costa Rica, Guyana, Panama, Venezuela, Colombia, Ecuador and Peru.

The female's crown and nape vary from dull orange to shades of green among the subspecies. Several have a black forehead. Its back is green, the throat grayish yellow with a yellow to orange band below it. Its lower breast is olive-yellow and the belly white. As in the male, there is some variation among subspecies.

24-5-2017 ALDEA ROQUETA, VALENCIA - EURASIAN GOLDEN ORIOLE (Oriolus oriolus)

The Eurasian golden oriole (Oriolus oriolus) is the only member of the Old World oriole family of passerine birds breeding in Northern Hemisphere temperate regions. The name "oriole" was first used in the 18th century and is an adaptation of the scientific Latin genus name, which is derived from the Classical Latin "aureolus" meaning golden. Various forms of "oriole" have existed in Romance languages since the 12th and 13th centuries. Albertus Magnus used the Latin form oriolus in about 1250 and erroneously stated that it was onomatopoeic because of the golden oriole's song. In medieval England, its name, derived from the song, was the woodwele.

Males of this species are golden yellow in color with black wings that have yellow-tipped coverts. Females are almost greenish with a yellowish-white belly. Despite the bright colors of males it's quite difficult to spot these birds in the yellow and green leaves of the canopy due to their secretive habits.

24-5-2017 ALDEAROQUETA, VALENCIA - BLACK REDSTART (MALE)

The Black Redstart (Phoenicurus ochruros) is a small, charismatic passerine bird, exhibiting a blend of dark and vibrant plumage. Males are distinguished by their dark grey to black upperparts and breast, with a striking orange-red rump and tail. Females and juveniles are more subdued in color, with grey to grey-brown feathers and the same vivid tail coloration that is the hallmark of the species.

Adult males are easily identified by their dark upperparts and black breast, contrasting with the orange-red lower rump and tail. The belly and undertail may vary from blackish-grey to orange-red, depending on the subspecies. Females and juveniles are less conspicuous, with overall greyer tones and a distinctive orange-red rump and tail. The presence of pale fringes on the secondaries forms a whitish wing panel in some subspecies.

The Black Redstart has adapted remarkably to urban environments, often found nesting in crevices or holes within buildings. Originally a dweller of stony mountainous regions, it now thrives in industrial areas with similar structural features.

This species is widely distributed across south and central Europe, Asia, and north-west Africa. It is a resident in milder regions, while populations in the northeast migrate to warmer areas during winter.

The Black Redstart is known for its robin-like movements, including quick ducks of the head and body, and frequent tail flicking. Males possess a rattling song and a tick call, adding to their distinctive presence.

23-3-2017 SAN GERARDO DE DOTA COSTA RICA - COMMON MORPHO (Morpho helenor)

Morpho helenor, the Helenor blue morpho or common blue morpho, is a Neotropical butterfly found throughout Central and South America from Mexico to Argentina. It is a species group that may or may not be several species. Many subspecies have been described.

The larvae of subspecies Morpho helenor achillaena have been recorded as feeding on Genipa americana, Inga, Machaerium, Platymiscium, Wisteria, Trifolium, Arachis and Robinia.

23-5-2017 ALDEAROQUETA, VALENCIA - WHITE WAGTAIL (Motacilla alba)

The White wagtail is a slender bird with the characteristic long, constantly wagging tail of its genus. There are a number of other subspecies, some of which may have arisen because of partial geographical isolation, such as the resident British and Irish form, the pied wagtail M. a. yarrellii, which now also breeds in adjacent areas of the neighbouring European mainland. The Pied wagtail exchanges the grey colour of the nominate form with black (or very dark grey in females), but is otherwise identical in its behaviour. Other subspecies, the validity of some of which is questionable, differ in the colour of the wings, back, and head, or other features. Some rraces show sexual dimorphism during the breeding season. As many as six subspecies may be present in the wintering ground in India or Southeast Asia and here they can be difficult to distinguish.

White wagtails breed throughout Eurasia, only being absent in the Arctic. They also breed in the mountains of Morocco and western Alaska. These birds are residents in the milder parts of their range such as western Europe and the Mediterranean, but migratory in much of the rest of their range. Northern European breeders winter around the Mediterranean and in tropical and subtropical Africa, and Asiatic birds move to the Middle East, India, and Southeast Asia. Birds from the North American population also winter in tropical Asia. White wagtails occupy a wide range of habitats but are absent from deserts. They inhabit grasslands, seashores, rocky shorelines, sand beaches, tidepools, rivers, lakeshores, farmland, gardens, and parks. They are also often found in towns and villages. 

The White wagtail (Motacilla alba) is a small insectivorous bird of the open country, often near habitation and water. It prefers bare areas for feeding, where it can see and pursue its prey. In urban areas, it has adapted to foraging on paved areas such as car parks. It is the national bird of Latvia and has been featured on the stamps of several countries.

The call of the white wagtail is a sharp chisick, slightly softer than the version given by the pied wagtail. The song is more regular in white than pied, but with little territorial significance, since the male uses a series of contact calls to attract the female.

There are a number of other subspecies, some of which may have arisen because of partial geographical isolation, such as the resident British and Irish form, the pied wagtail M. a. yarrellii, which now also breeds in adjacent areas of the neighbouring European mainland. The pied wagtail, named for naturalist William Yarrell, exchanges the grey colour of the nominate form with black (or very dark grey in females), but is otherwise identical in its behaviour. Other subspecies, the validity of some of which is questionable, differ in the colour of the wings, back, and head, or other features. Some races show sexual dimorphism during the breeding season. As many as six subspecies may be present in the wintering ground in India or Southeast Asia and here they can be difficult to distinguish. Phylogenetic studies using mtDNA suggest that some morphological features have evolved more than once, including the back and chin colour. Breeding M. a. yarrellii look much like the nominate race except for the black back, and M. a. alboides of the Himalayas differs from the Central Asian M. a. personata only by its black back. M. a. personata has been recorded breeding in the Siddar Valley of Kashmir of the Western Himalayas. It has also been noted that both back and chin change colour during the pre-basic moult; all black-throated subspecies develop white chins and throats in winter and some black-backed birds are grey-backed in winter.