21-5-2017 PEGO MARJAL, ALICANTE - GREAT REED WARBLER (Acrocephalus arundinaceus)

The great reed warbler (Acrocephalus arundinaceus ) is a Eurasian passerine in the genus Acrocephalus.

The genus name Acrocephalus is from Ancient Greek akros, "highest", and kephale, "head". It is possible that Naumann and Naumann thought akros meant "sharp-pointed". The specific arundinaceus is from Latin and means "like a reed", from arundo, arundinis, "reed".

It used to be placed in the Old World warbler assemblage, but is now recognized as part of the marsh and tree-warbler family (Acrocephalidae). Great reed warblers are medium-sized birds and are the largest of the European warblers. They breed throughout mainland Europe and the west Palearctic and migrate to sub-Saharan Africa in the winter. Great reed warblers favour reed beds as their habitat during breeding months, while living in reed beds, bush thickets, rice fields, and forest clearings during the winter. Great reed warblers exhibit relatively low sexual dimorphism, and both genders of the species are similar in appearance. This species mates both polygynously and monogamously.

The thrush-sized warbler is one of the largest species of the former family, the Old World warblers and it stands as one of the largest species in the family Acrocephalidae. It measures 16–21 cm (6.3–8.3 in) in length, 25 to 30 cm (9.8 to 11.8 in) in wingspan and weighs 22 to 38 g (0.78 to 1.34 oz). The adult has unstreaked brown upperparts and dull buffish-white chin and underparts. The forehead is flattened, and the bill is strong and pointed. It looks very much like a giant Eurasian reed warbler (A. scirpaceus ), but with a stronger supercilium.

The sexes are identical, as with most old world warblers, but young birds are richer buff below.

The warbler's song is very loud and far-carrying. The song's main phrase is a chattering and creaking carr-carr-cree-cree-cree-jet-jet, to which the whistles and vocal mimicry typical of marsh warblers are added.

22-3-2017 TROGON LODGE, COSTA RICA - RUFOUS COLLARED SPARROW (Zonotrichia capensis)

The Rufous-collared Sparrow, also known as the Andean Sparrow, is a small, charming bird measuring 13.5–15 cm in length and weighing between 20–25 grams. Adults are recognized by their stubby grey bills and a distinctive grey head marked with broad black stripes on the crown sides, and thinner stripes through the eye and below the cheeks. A notable rufous nape and breast sides complement their black-streaked buff-brown upperparts, and they exhibit two white wing bars. Their throats are white, transitioning to off-white underparts that become brown on the flanks, highlighted by a black breast patch. Juveniles present a more subdued appearance with duller, indistinct head patterns and streaked underparts, lacking the adult's rufous collar.

When identifying this species, look for the rufous collar around the nape and the black stripes on the head. The two white wing bars are also key features. The largest subspecies, found on the tepuis, has grey underparts and a more extensive rufous collar that appears as a band of black freckles across the breast.

The Rufous-collared Sparrow thrives in a variety of open or semi-open habitats, including cultivated lands, gardens, parks, grasslands, and scrubby second growth or cerrado. It is well-adapted to urban and suburban environments but is notably absent from dense Amazonian forests.

This adaptable bird ranges from the extreme south-east of Mexico to Tierra del Fuego, and on the island of Hispaniola in the Caribbean. In the northern and western parts of its range, it is typically found at altitudes of 600–4,000 meters, while in the southern and eastern parts, it is commonly found down to near sea level.

The Rufous-collared Sparrow is often seen in pairs or small flocks, holding small territories. It is known for its tame and approachable nature, making it a familiar sight across its extensive range.

The male's song is a delightful mix of slurred whistles and trills, varying geographically. Calls include a sharp "tsip." Listen for songs that may include tee-teeooo, e’e’e’e’e, or teeooo, teeeee, often delivered from a low perch.

Breeding is influenced by food availability and rainfall. Nests are open cups of plant material lined with fine grasses, placed in vegetation on the ground or low in a tree or bush. Females lay two or three pale greenish-blue eggs with reddish-brown blotches, which are incubated for 12–14 days. Males assist in feeding the chicks, which fledge after about two weeks. Brood parasitism by species such as the shiny cowbird may occur.

This sparrow forages on the ground for seeds, fallen grain, insects, and spiders. It may join mixed-species feeding flocks and has been observed picking termites from spider webs.

The Rufous-collared Sparrow is classified as Least Concern by the IUCN, thanks to its widespread distribution and adaptability to human-altered environments.

22-3-2017 HOTEL BOUGANVILLEA, COSTA RICA - MEXICAN FRITILLARY BUTTERFLY (Euptoieta hegesia)

Euptoieta hegesia, the Mexican fritillary, is a North and South American butterfly in the family Nymphalidae.

The upperside of the wings is bright orange with the basal part of the hindwing unmarked. There is a row of submarginal black spots on both the forewing and the hindwing. The underside of the wings is yellow orange with no submarginal black spots. It has a wingspan of 2.5 to 3 inches.

The only similar species in the Mexican fritillary's range is the variegated fritillary (Euptoieta claudia). The variegated fritillary has black median lines on the upperside of the hindwing, and on the underside of the hindwing it has a pale postmedian band.

The Mexican fritillary may be seen from mid-June to November in Arizona, from July to December in Texas and year-round in Mexico.

This species may be encountered in a wide range of open habitats and gardens.

The larva is shiny red, with middorsal silver spots edged with black. It has a subdorsal row of white spots ringed with black, a spiracular silver line with black edges, and six rows of black spines. The red head has two long black spines with clubbed ends. The chrysalis is dark brown or rarely tan, with gold eyes and short gold lateral and subdorsal cones. On the wing cases, it has a black marking shaped like a "T". It has one to three broods per year.

Here is a list of host plants used by the Mexican fritillary:

Foetid passionflower, Passiflora foetida

Yellow alder, Turnera ulmifolia (used in Mexico and in the Antilles)

Ipomoea maritima (used in Brazil)

Damiana, Turnera diffusa.

23-3-2017 SAN GERARDO DE DOTA COSTA RICA - RED HEADED BARBET (MALE) (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.

Male red-headed barbet subspecies except E. b. occidentalis range in weight from 30 to 41 g (1.1 to 1.4 oz). Females except occidentalis weigh 31 to 38 g (1.1 to 1.3 oz). Male occidentalis weigh 37.8 to 45.1 g (1.33 to 1.59 oz) and females 37.8 to 43.7 g (1.33 to 1.54 oz). Males have a red head, an orange to yellow breast, and a white belly . A white collar separates the head from the olive green back. The amount of red on the throat and chest and the width of the orange-yellow breast band vary among the subspecies. 

21-5-2017 PEGO MARJAL, ALICANTE - PURPLE HERON (Ardea purpurea)

The purple heron (Ardea purpurea ) is a wide-ranging species of wading bird in the heron family, Ardeidae. The scientific name comes from Latin ardea "heron", and purpureus, "coloured purple". It breeds in Africa, central and southern Europe, and southern and eastern Asia. The Western Palearctic populations migrate between breeding and wintering habitats whereas the African and tropical-Asian populations are primarily sedentary, except for occasional dispersive movements.

It is similar in appearance to the more common grey heron but is slightly smaller, more slender and has darker plumage. It is also a more evasive bird, favouring densely vegetated habitats near water, particularly reed beds. It hunts for a range of prey including fish, rodents, frogs and insects, either stalking them or standing waiting in ambush.

Purple herons are colonial breeders and build a bulky nest out of dead reeds or sticks close to the water' edge among reeds or in dense vegetation. About five bluish-green eggs are laid and are incubated by both birds. The young hatch about four weeks later and fledge six weeks after that. The International Union for Conservation of Nature notes that the global population trend is downwards, largely because of the drainage of wetlands, but assesses the purple heron's conservation status as being of "least concern".

21-5-2017 PEGO MARJAL, ALICANTE - LITTLE EGRET (Egretta garzetta)

Little egrets are monogamous. This means that males and females mate only with one partner. They nest in colonies, often with other wading birds. The nests are usually platforms of sticks built in trees or shrubs or in reed beds or bamboo groves. In some locations such as the Cape Verde Islands, these birds nest on cliffs. Pairs defend a small breeding territory, usually extending around 3 to 4 m (10 to 13 ft) from the nest. The female lays 3 to 5 eggs which are incubated by both parents for 21 to 25 days. The eggs are oval in shape and have a pale, non-glossy, blue-green shell color. Upon hatching the chicks are covered in white down feathers and are cared for by both parents. Around 3 weeks after hatching the chicks start to move around the nest and climb into the close branches. They fledge after 40 to 45 days and are able to follow the adults to learn how to feed themselves.

21-5-2017 PEGO MARJAL, ALICANTE - 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.

22-3-2017 TROGON LODGE, COSTA RICA - SLATY FLOWERPIERCER (Diglossa plumbea)

The Slaty Flowerpiercer, known scientifically as Diglossa plumbea, is a diminutive passerine bird, a resident of the Talamancan montane forests. This species exhibits sexual dimorphism. The adult male is adorned in blue-grey plumage with a lead-grey throat and breast, while the tail and wings are a darker blackish hue, softened by grey feather edges. The female, on the other hand, is cloaked in olive-brown above, with a paler throat and breast that gently transitions to buff on the belly. Juveniles resemble the female but are distinguished by two tawny wing bars and faintly streaked buff-yellow underparts.

When identifying the Slaty Flowerpiercer, look for its unique upturned bill with a hooked upper mandible and pointed lower mandible, a feature that is quite distinctive. The bird measures a mere 10 cm in length and tips the scales at approximately 9 grams.

This bird is commonly found in the canopy and edges of mountain forests, thriving in sunlit clearings and areas abundant with flowering shrubs. It is also known to frequent gardens.

The Slaty Flowerpiercer's breeding range extends from 1200 meters in elevation in the northern reaches of Costa Rica to 1900 meters in the southern mountains. It can also be found well above the timberline in páramo habitats.

This species is known for its interactions with territorial hummingbirds. When confronted by these feisty competitors, the Slaty Flowerpiercer often retreats to dense cover to avoid conflict.

The Slaty Flowerpiercer communicates with a thin 'tsip' call. The male's song is a complex symphony of whistles, warbles, and trilled notes, which can be phonetically rendered as "see-chew see-chew see-chew seer seer surrzeep, tsee tsew tsink tsink tsink."

The female Slaty Flowerpiercer is solely responsible for constructing the large cup nest, which is made of coarse plant material and lined with fine fibers. The nest is strategically placed within a dense shrub, grass tussock, or pine, anywhere from 0.4 to 4 meters above the ground. The clutch consists of two brown-speckled pale blue eggs, which the female incubates alone for a period of 12 to 14 days until they hatch.

True to its name, the Slaty Flowerpiercer feeds by piercing the base of flowers to extract nectar with its brush-like tongue. It also supplements its diet with tiny insects, which it captures from foliage or in mid-flight.

The Slaty Flowerpiercer is currently classified as Least Concern on the IUCN Red List, indicating that it is not at immediate risk of widespread decline.

19-5-2017 MONTE CORONA, VALENCIA - SPECKLED WOOD BUTTERFLY (Pararge aegeria)

The speckled wood (Pararge aegeria) is a butterfly found in and on the borders of woodland areas throughout much of the Palearctic realm. The species is subdivided into multiple subspecies, including Pararge aegeria aegeria, Pararge aegeria tircis, Pararge aegeria oblita, and Pararge aegeria insula. The color of this butterfly varies between subspecies. The existence of these subspecies is due to variation in morphology down a gradient corresponding to a geographic cline. The background of the wings ranges from brown to orange, and the spots are either pale yellow, white, cream, or a tawny orange. The speckled wood feeds on a variety of grass species. The males of this species exhibit two types of mate locating behaviors: territorial defense and patrolling. The proportion of males exhibiting these two strategies changes based on ecological conditions. The monandrous female must choose which type of male can help her reproduce successfully. Her decision is heavily influenced by environmental conditions.

19-5-2017 MONTE CORONA, 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 (about 1800), North America (1860s), Hawaii (1897), New Zealand (1930), and Australia (1937), as a result of accidental introductions.

19-5-2017 MONTE CORONA, VALENCIA - SPOTTED FLYCATCHER (Muscicapa striata)

At first glance, Spotted Flycatchers might seem a little dull, with brownish-grey feathers. It's better to think of them as beautiful in an understated way. Watch them for a short period and you'll be charmed by their fly-catching antics. Spotted Flycatchers fly from a high perch, dash out to grab a flying insect and return to the same spot.

Spotted Flycatchers declined by 88% between 1970 and 2018, putting them on the Red List of birds of high conservation concern. 

You’re most likely to see Spotted Flycatchers in woodlands, as well as mature gardens and parks with lots of trees and other vegetation that support the insects they feed on. They will also use mature hedgerows with trees in farmland. Spotted Flycatchers are widespread across much of the UK.  

As their name suggests, Spotted Flycatchers are masters at catching flies and other insects, such as butterflies, wasps and craneflies. You might see one sitting on a branch, before darting out to catch an unsuspecting insect as it flies past. 

The Spotted Flycatcher’s call is a repetitive, high-pitched ‘tzee, tzee’. Its song is a series of scratchy warbles and higher-pitched notes. 

Spotted Flycatchers build their open, cup-shaped nests on ledges in and around buildings and walled gardens, as well as on creepers climbing up walls and trees. 

They eat flying insects, such as moths, butterflies, damselflies, craneflies and other tasty morsels. If the weather is bad, they can search trees and shrubs for other insect food.

21-3-2017 HOTEL BOUGAINVILLEA, COSTA RICA - BALTIMORE ORIOLE (FEMALE) (Icterus galbula)

The Baltimore oriole (Icterus galbula) is a small icterid blackbird, a migratory breeding bird common in eastern North America. The male's vibrant orange and black plumage is reminiscent of the coat-of-arms of the 17th-century Lord Baltimore, hence the name. This medium-sized passerine typically measures 17–22 cm in length with a wingspan of 23–32 cm. Adults are characterized by white bars on the wings, with males boasting a more pronounced orange hue on the underparts, shoulder patch, and rump, while females and juveniles display a more subdued yellow-brown and dull orange-yellow coloration.

Males are distinguished by their black head and back with bright orange to yellow-orange underparts and a solid black tail. Females and juveniles are less boldly colored, with a mix of brown and orange hues. All adults have distinctive white wing bars, which are useful for identification from a distance or in flight.

Baltimore orioles favor open woodland, forest edges, and partially wooded wetlands. They are also found in orchards, farmland, urban parks, and suburban areas with woodlots. During winter, they inhabit flowering canopy trees, often over shade coffee plantations.

The Baltimore oriole breeds from the Canadian Prairies and eastern Montana eastward through southern Canada and the eastern United States, migrating to winter in Central America and northern South America. They are rare vagrants to Western Europe.

Outside of mating season, Baltimore orioles are solitary. They are monogamous, though extra-pair copulation is not uncommon. Males establish territories in the spring and perform various displays to attract females. After mating, the female weaves a remarkable hanging nest where she lays her eggs.

The male's song is a series of sweet whistles, while calls include a nasal "veeer" and a low chatter. Females also sing, especially when defending their nests. Both sexes emit specific warning calls during confrontations.

Baltimore orioles are generally monogamous and solitary outside the breeding season. The female constructs a hanging, pouch-like nest at the end of a branch, where she lays 3-7 eggs. Both parents feed the nestlings, which fledge after about two weeks.

Orioles primarily feed on insects, berries, and nectar. They are adept at foraging in trees and shrubs and are known to sip at hummingbird feeders. They play an important ecological role by consuming pests such as the forest tent caterpillar moth.

The Baltimore oriole is currently listed as Least Concern by the IUCN. However, its population has experienced a decline due to factors such as habitat loss and Dutch elm disease, which has reduced nesting sites.

19-3-2017 MIAMI, FLORIDA - PIANO KEY BUTTERFLY (Heliconius melpomene)

Heliconius melpomene, the postman butterfly, common postman or simply postman, is a brightly colored, geographically variable butterfly species found throughout Central and South America. It was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. Its coloration coevolved with another member of the genus, H. erato as a warning to predators of its inedibility; this is an example of Müllerian mimicry. H. melpomene was one of the first butterfly species observed to forage for pollen, a behavior that is common in other insect groups but rare in butterflies. Because of the recent rapid evolutionary radiation of the genus Heliconius and overlapping of its habitat with other related species, H. melpomene has been the subject of extensive study on speciation and hybridization. These hybrids tend to have low fitness as they look different from the original species and no longer exhibit Müllerian mimicry.

Heliconius melpomene possesses ultraviolet vision which enhances its ability to distinguish subtle differences between markings on the wings of other butterflies. This allows the butterfly to avoid mating with other species that share the same geographic range.

The postman butterfly is predominately black with either red or yellow bands across the forewings. The postman butterfly has large long wings (35–39 mm). It is poisonous, and the red patterns on its wings are an example of aposematism. They look similar to H. erato. Two features found on the underside of the hind wings help to distinguish H. erato from H. melpomene—H. erato usually has four red dots where the wing attaches to the thorax while H. melpomene usually has three. In Mexico, Central America and the west coast of Colombia and Ecuador, the yellowish-white stripe on the underside reaches the margin of the hindwing in H. erato but ends before reaching the margin in H. melpomene.

There are many geographical races/subspecies/morphs of this butterfly throughout Central and South America. The geographical variation in patterns has been studied using linkage mapping and it has been found that the patterns are associated with a small number of genetic loci called genomic "hotspots". Hotspot loci for color patterning have been found homologous between co-mimics H. erato and H. melpomene, strengthening evidence for parallel evolution between the two species, across morph patterns.

Heliconius melpomene is found from Central America to South America, especially on the slopes of the Andes mountains. It most commonly inhabits open terrain and forest edges, although it can also be found near the edges of rivers and streams. It shares its range with other Heliconius species, and H. melpomene is usually less abundant than other species.

19-3-2017 MIAMI, FLORIDA - YELLOW EYED JUNCO (Junco phaeonotus)

The Yellow-eyed Junco (Junco phaeonotus) is a charming bird, a member of the small New World sparrows. It is distinguished by its striking yellow eyes, which contrast with its otherwise muted plumage. The bird's overall coloration is a blend of dusky browns and greys, with a notable brown back, a feature hinted at in its scientific name.

When attempting to identify the Yellow-eyed Junco, look for its distinctive yellow eyes, which are a key characteristic. The bird's upper parts are a mix of grey and brown, while the underparts tend to be paler. The bill is usually pinkish.

This species is found in mountainous regions, where it frequents coniferous and mixed forests. It is also known to inhabit areas with abundant shrubbery.

The Yellow-eyed Junco's range is primarily within Mexico, but it extends into the southern mountainous regions of Arizona and New Mexico in the United States.

The Yellow-eyed Junco is not generally known to migrate, but it may move to lower elevations during the winter months. It is a ground forager and can often be seen hopping along the forest floor.

19-3-2017 MIAMI, FLORIDA - ATLANTIC CANARY (Serinus canaria)

The Atlantic canary (Serinus canaria), known worldwide simply as the wild canary and also called the island canary, common canary, or canary, is a small passerine bird belonging to the genus Serinus in the finch family, Fringillidae. It is native to the Canary Islands, the Azores, and Madeira. Wild birds are mostly yellow-green, with brownish streaking on the back. The species is common in captivity and a number of colour varieties have been bred.

This bird is the natural symbol of the Canary Islands, together with the Canary Island date palm.

19-3-2017 MIAMI, FLORIDA - MELPOMENE LONGWING (Heliconius melpomene rosina)

Heliconius melpomene is a widespread neotropical species well known for its geographic diversity in colour pattern. Throughout its range, H. melpomene is co-mimetic with Heliconius erato, and both species have around 30 named geographic sub-species.

19-3-2017 BUTTERFLY WORLD, FLORIDA - STARRY NIGHT CRACKER BUTTERFLY (Hamadryas laodamia)

Hamadryas laodamia, the starry night cracker or starry cracker, is a species of cracker butterfly in the family Nymphalidae. It can be found from Mexico to the Amazon basin, but is most common in lowland forest in the Caribbean area.

The starry night cracker is a black butterfly with iridescent blue speckling on its wings. The female has a white band on the underside of the forewing that is broader than the band on the male. The wingspan is about 7 cm (2.8 in). The caterpillars have short horns on their heads, the function of which is unknown, and the pupae are bright green.

This butterfly is native to the Caribbean area, Central America and tropical South America. It occurs at altitudes of up to 900 m (3,000 ft) on both the Pacific and Atlantic slopes of the Andes Ranges, but it is at its most common in lowland forests in the Caribbean region where it inhabits the mid and upper parts of the canopy.

The larvae of the starry night cracker feed on the leaves of Dalechampia triphylla, a vine in the family Euphorbiaceae. This butterfly exhibits aposematic colouring and is avoided by jacamars, birds that feed on other members of this family that rely on camouflage for their protection. It appears that the larvae of the starry night cracker store up distasteful toxic chemicals from the leaves, and the jacamars learn to avoid the vividly coloured adult butterflies.

The adult butterflies do not visit flowers, instead obtaining their nourishment by sucking the juices from rotting fruit. Like their well-camouflaged relatives, starry night crackers like to rest head-downward on the trunks of trees with their wings flattened against the bark.

19-3-2017 MIAMI, FLORIDA - RICHMOND BIRDWING BUTTERFLY (Ornithoptera richmondia)

Ornithoptera richmondia, the Richmond birdwing, is a species of birdwing butterfly that is endemic to Australia. It is the second smallest of the birdwing species, the smallest being Ornithoptera meridionalis.

Historically, O. richmondia is recorded from rainforests southwards from Maryborough to the Clarence River in New South Wales. Due to widespread habitat loss throughout its range, its distribution is much more restricted, especially in Queensland. Its present-day range is from Kin Kin and Pomona, North Arm, Yandina, Coolum (although this population is now extinct due to drought), Parklands and Nambour, Diddillibah, Buderim, Eudlo, Palmwoods, the Mooloolah and Diamond Valleys, the entire Blackall Range southeast from Kenilworth to the state forest near the Caloundra Turnoff and west to Peachester and the Stanley River, and the Conondale Range southwards to Mount Mee.

19-3-2017 MIAMI, FLORIDA - POSTMAN BUTTERFLY (Heliconius melpomene cythera)

The Postman (Heliconius melpomene cythera)

 

This slow-flying butterfly avoids bright sunlight, keeping to the shadier parts of the forest edges which it inhabits. In the rainy season it can be commonly found in forest / pasture mosaics, but abandons these in favour of more heavily forested areas in the dry season.

 

Heliconius melpomene is one of the commonest and most widespread of the Longwings, found from Mexico to Bolivia. The butterfly occurs commonly at elevations between sea level and about 2400m on both sides of the Andes.

 

Heliconius butterflies are characterised by having a very delicate fluttering flight, particularly when hovering around flowers. Both sexes visit Lantana and many other flowers for nectar, and sequester pollen from Psiguria flowers in the forest. They could learn and remember the exact location of particular Psiguria plants, which they visit daily, following a predefined circuit through the forest.

17-5-2017 ALBUFERA, VALENCIA - AUDOUIN'S GULL (Ichthyaetus audouinii)

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

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

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

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

Once considered one of the world's rarest gulls, the Audouin's gull has established new colonies but remains a rare sight with a population of around 10,000 pairs. This bird is not known to wander far from its breeding grounds, though occasional records exist of it appearing as far afield as the Netherlands, England, and even Trinidad.

Unlike many of its kin, the Audouin's gull does not scavenge but is a specialist fish eater. It feeds at night, often far out to sea, and also patrols beaches, occasionally dipping its legs into the water to create drag, aiding in its hunting technique.

The Audouin's gull breeds on small islands, laying 2-3 eggs in a ground nest. It has been known to breed both in colonies and as solitary pairs.

The Audouin's gull is currently classified as Vulnerable according to the IUCN Red List. It is also one of the species protected under the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA).

18-5-2017 CAMI LES FONTS OLIVA, VALENCIA - EUROPEAN SERIN (MALE) (Serinus serinus)

The European serin, or simply the serin (Serinus serinus ), is the smallest European species of the family of finches (Fringillidae) and is closely related to the Atlantic canary. Its diet consists mainly of a combination of buds and seeds.

The European serin is a small short-tailed bird, 11–12 cm in length. The upper parts are dark-streaked greyish green, with a yellow rump. The yellow breast and white belly are also heavily streaked. The male has a brighter yellow face and breast, yellow wing bars and yellow tail sides. The song of this bird is a buzzing trill, very familiar in Mediterranean countries.

It breeds across southern and central Europe and North Africa. Southern and Atlantic coast populations are largely resident, but the northern breeders migrate further south in Europe for the winter. Open woodland and cultivation, often with some conifers, is favoured for breeding. It builds its nest in a shrub or tree, laying 3–5 eggs. It forms flocks outside the breeding season, sometimes mixed with other finches.

The food is mainly seeds, and, in the breeding season, insects. This small serin is an active and often conspicuous bird.

The European serin, or simply the serin (Serinus serinus ), is the smallest European species of the family of finches (Fringillidae) and is closely related to the Atlantic canary. Its diet consists mainly of a combination of buds and seeds.

The European serin is a small short-tailed bird, 11–12 cm in length. The upper parts are dark-streaked greyish green, with a yellow rump. The yellow breast and white belly are also heavily streaked. The male has a brighter yellow face and breast, yellow wing bars and yellow tail sides. The song of this bird is a buzzing trill, very familiar in Mediterranean countries.

18-5-2017 CANAL LES FONTS OLIVA, VALENCIA - BARN SWALLOW (Hirundo rustica)

The Barn swallow (Hirundo rustica) is the most widespread species of swallow in the world. In fact, it has the largest natural distribution of any of the world's passerines, ranging over 251 million square kilometers globally. In Anglophone Europe it is just called the swallow; in northern Europe, it is the only common species called a "swallow" rather than a "martin".

The Barn swallow is a distinctive songbird with blue upperparts and a long, deeply forked tail. There is a line of white spots across the outer end of the upper tail. The female is similar in appearance to the male, but the tail streamers are shorter, the blue of the upperparts and breast band is less glossy, and the underparts paler. The juvenile is browner and has a paler rufous face and whiter underparts. It also lacks the long tail streamers of the adult.

Barn swallows are found in Europe, Asia, Africa, and the Americas. These birds are long-distance migrants and their wintering grounds cover much of the Southern Hemisphere as far south as central Argentina, the Cape Province of South Africa, and northern Australia. The preferred habitat of Barn swallows is open country with low vegetation, such as pasture, meadows, and farmland, preferably with nearby water. These birds avoid heavily wooded or precipitous areas and densely built-up locations. On their wintering grounds, Barn swallows avoid only dense forests and deserts. They are most common in open, low vegetation habitats, such as savanna and ranch land, and in Venezuela, South Africa, and Trinidad and Tobago the birds are particularly attracted to burnt or harvested sugarcane fields and the waste from the cane.

18-5-2017 CAMI LES FONTS OLIVA, VALENCIA - EUROPEAN MOORHEN (Gallinula chloropus)

The common moorhen, known scientifically as Gallinula chloropus, is a bird of the rail family, Rallidae. It is a bird of striking appearance, with a mix of black and brown plumage, a white under-tail, and white streaks along its flanks. Its legs are a vibrant yellow, and it sports a distinctive red frontal shield. The bill is a matching red with a yellow tip. Juveniles are a duller brown and do not have the red shield.

Adult moorhens can be identified by their red frontal shield, which has a rounded top and fairly parallel sides. The tailward margin of the red unfeathered area is smoothly curved. Their yellow legs and the combination of their black and brown plumage with white markings make them quite distinctive. The young are browner and lack the red shield, making them less conspicuous.

The common moorhen is found in a variety of wetland habitats, including marshes, ponds, canals, and lakes that are rich in vegetation. It is also known to inhabit city parks with suitable water bodies.

This species has a broad distribution across many parts of the Old World. It is not found in polar regions or many tropical rainforests but is otherwise widespread, often being the most common rail species in its range.

Moorhens are known for their secretive nature but can become quite tame in certain areas. They exhibit territorial behavior during the breeding season and are known to aggressively defend their territory against intruders.

The common moorhen emits a variety of gargling calls and will hiss loudly when threatened.

Breeding season sees moorhens becoming territorial. They construct a basket-like nest on the ground within dense vegetation. Egg-laying typically begins in spring, with clutches ranging from 5 to 8 eggs. Both parents are involved in incubation and rearing the young, which fledge after 40-50 days.

The common gallinule (Gallinula galeata) of the Americas is closely related but can be distinguished by the shape of its frontal shield and the coloration of its plumage.

Moorhens have a varied diet that includes vegetable matter and small aquatic organisms. They forage in and around water bodies, sometimes upending in the water or walking on lilypads to feed.

Globally, the common moorhen is abundant and classified as Least Concern by the IUCN. However, localized populations may be vulnerable to extinction due to habitat loss and hunting.

18-5-2017 CAMI LES FONTS OLIVA, VALENCIA - MALLARD (JUVENILE)

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

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

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

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

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

The female Mallard is known for its quintessential "quack," while the male's call is a quieter and deeper version of the female's. Vocalizations can vary by region, with urban ducks being louder than their rural counterparts.

Breeding pairs form in the fall, with the female laying 8 to 13 creamy white to greenish-buff eggs. Incubation lasts 27 to 28 days, and ducklings are precocial, swimming immediately after hatching.

Mallards are omnivorous, feeding on a variety of foods including seeds, plant matter, insects, crustaceans, and small animals. Their diet varies with the season and breeding cycle.

The Mallard is classified as Least Concern by the IUCN. However, it is considered invasive in some regions, where it can hybridize with and threaten local duck species.