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Saturday, 26 March 2016

24-11-2015 SINGAPORE - BROWN ANOLE LIZARD (Anolis sagrei)


The brown anole (Anolis sagrei), also known commonly as the Cuban brown anole, or De la Sagra's anole, is a species of lizard in the family Dactyloidae. The species is native to Cuba and the Bahamas. It has been widely introduced elsewhere, via the importation and exportation of plants where the anole would lay eggs in the soil of the pots, and is now found in Florida and as far north in the United States as southern Georgia, Texas, Louisiana, Tennessee, Mississippi, Alabama, Hawaii, and Southern California.] It has also been introduced to other Caribbean islands, Mexico, and Taiwan.

This species is highly invasive. In its introduced range, it reaches exceptionally high population densities, is capable of expanding its range very quickly, and both outcompetes and consumes many species of native lizards, like the green anole. The brown anole's introduction into the United States in the early 1970s has altered the behavior and negatively affected populations of the native Carolina anole (Anolis carolinensis, also known as the green anole), which have since generally been relegated to the treetops.


The first record of the Anolis sagrei in Taiwan was in September 2000 at the Sanjiepu Township of Chiayi County. The source of the invasion was unknown. It was speculated that the egg from this animal is being hidden in potted plants heading to Taiwan and being introduced to Taiwan unintentionally. Wild groups are being discovered in the Ci Sing Tan Scenic Spot of the Hua-lian City in 2008. Monitoring removal plan was being carried out in 2009.

The brown anole is normally a light brown color with darker brown to black markings on its back, and several tan to light color lines on its sides. Like other anoles, it can change color, in this case a darker brown to black. Its dewlap ranges from yellow to orange-red.


Brown anoles are typically 5.0 to 8.5 inches long. The males can grow as large as their male Carolina anole counterparts, around 17.8–20.3 cm (7.0–8.0 in) long, with some individuals topping 22.9 cm (9.0 in). The females are also around the size of female Carolina anoles, which ranges from 7.6–15 cm (3.0–5.9 in). The male brown anole's head is smaller than that of the male Carolina anole.

The brown anole's tail has a ridge that travels all the way up to behind the head, a feature that the Carolina anole lacks. Female anolis lizards exhibit heritable polymorphism in their dorsal patterning. A study in Gainesville, Florida reported that one-third of A. sagrei females displayed a male-like chevron dorsal pattern, while other females had a striped dorsal pattern with continuous variation.

24-12-2015 KOH KOON, THAILAND - BURNET MOTH (Cyclosia midamia)


Cyclosia midamia is a moth in the family Zygaenidae. It is found in Malaysia and on Borneo. Five subspecies recognized.

It disguises itself to resemble the spotted blue crow. It secretes liquid hydrogen cyanide through their legs as little droplets. Though unlike the butterfly, and so many other insects, Cyclosia midamia produces its own poison made out of the chemical compound cyanide.


Cyclosia midamia (Herrich-Schäer, [1853]) is a day-ying moth that belongs to the order Lepidoptera of the family Zygaenidae (subfamily Chalcosiinae).  It looks fascinating and mimics the Spotted Blue Crow.


Mimicry and aposematic (denoting colouration to repel predators) in this species is due to the high concentrations of two chemicals lotaustralin and cyanoglucosides linamarin. They release hydrocyanic acid by decomposition of these two chemicals which is poisonous to birds and predators. 

26-3-2016 XATIVA, VALENCIA - HOUSE SPARROW (MALE) (Passer domesticus)


The house sparrow (Passer domesticus) is a bird of the sparrow family Passeridae, found in most parts of the world. It is a small bird that has a typical length of 16 cm (6.3 in) and a mass of 24–39.5 g (0.85–1.39 oz). Females and young birds are coloured pale brown and grey, and males have brighter black, white, and brown markings. One of about 25 species in the genus Passer, the house sparrow is native to most of Europe, the Mediterranean Basin, and a large part of Asia. Its intentional or accidental introductions to many regions, including parts of Australasia, Africa, and the Americas, make it the most widely distributed wild bird.
The house sparrow is strongly associated with human habitation, and can live in urban or rural settings. Though found in widely varied habitats and climates, it typically avoids extensive woodlands, grasslands, polar regions, and hot, dry deserts far away from human development. For sustenance, the house sparrow routinely feeds at home and public bird feeding stations, but naturally feeds on the seeds of grains, flowering plants and weeds. However, it is an opportunistic, omnivorous eater, and commonly catches insects, their larvae, caterpillars, invertebrates and many other natural foods.

26-3-2016 XATIVA, VALENCIA - EUROPEAN GREENFINCH (Chloris chloris)


The European greenfinch (Chloris chloris) is a small passerine bird widespread throughout Europe, North Africa and Southwest Asia. It has also been introduced into Australia, New Zealand, Uruguay, and Argentina.

The European greenfinch is similar in size and shape to a House sparrow, but is mainly green, with yellow in the wings and tail. The female and young birds are duller and have brown tones on the back. The bill is thick and conical. The song contains a lot of trilling twitters interspersed with wheezes, and the male has a "butterfly" display flight.

European greenfinches are widespread throughout Europe, North Africa, and Southwest Asia. They are mainly residents, but some northernmost populations migrate further south. Greenfinches inhabit forests, woodland edges, farmland hedges, plantations, gardens with relatively thick vegetation, and parks.


Population size
48-74 Mlnlnn
Life Span
2-13 years
Weight
25-31
goz
g oz 
Length
15
cminch
cm inch 
Wingspan
25-28
cminch

26-3-2016 XATIVA, VALENCIA - EURASIAN BLACKCAP (MALE) (Sylvia atricapilla)


The Eurasian blackcap (Sylvia atricapilla) is a common and widespread warbler that breeds in much of Europe, western Asia, and northwestern Africa. Its rich and varied song has led to the blackcap being described as the "mock nightingale" and it has been featured in literature, films, and music.

The Eurasian blackcap is mainly grey in color with distinct male and female plumages. The adult male has olive-grey upperparts, other than a paler grey nape and a neat black cap on the head. The underparts are light grey, becoming silvery white on the chin, throat, and upper breast. The tail is dark grey, with an olive tint to the outer edge of each feather. The bill and long legs are grey, and the iris is reddish brown. The female resembles the male but has a reddish-brown cap and a slightly browner tone to the grey of the upperparts. Juveniles are similar to the female, but their upperparts have a slight rufous tinge, and the breast and flanks have a more olive tone; young males have darker brown cap than their female counterparts.

Population size
101-161 Mlnlnn
Life Span
2-13 years
Top speed
75
km/hmph
km/h mph 
Weight
16-25
goz
g oz 
Length
13-14
cminch
cm inch 

25-3-2016 MONTE CORONA, 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 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.


Population size
135-221 Mlnlnn
Life Span
12 years
Weight
25
goz
g oz 
Length
16-19
cminch
cm inch 


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.


White wagtails are usually seen alone or in pairs, but during migration, they often gather in flocks at good feeding areas or roost at night. These birds feed by day on the ground or on the wing. They may also forage in shallow water catching prey in the mud or may hover over water. The most conspicuous habit of White wagtails is a near-constant tail wagging, a trait that has given the birds their common name. The reasons for this behavior are poorly understood but it has been suggested that wagtails may flush prey, or signal submissiveness to other wagtails. The call of these birds is a sharp 'chisick' and their song consists of twittering phrases; the males use a series of contact calls to attract the female.

26-3-2016 GANDIA, VALENCIA - WESTERN CATTLE EGRET (MALE) (Bubulcus ibis)


The short, thick-necked Western Cattle Egret spends most of its time in fields rather than streams. It forages at the feet of grazing cattle, head bobbing with each step, or rides on their backs to pick at ticks. This stocky white heron has yellow plumes on its head and neck during breeding season. Originally from Africa, it found its way to North America in 1953 and quickly spread across the continent. Elsewhere in the world, it forages alongside camels, ostriches, rhinos, and tortoises—as well as farmers’ tractors.

25-3-2016 VILLALONGA RESERVOIR, WHITE WAGTAIL (Motacilla alba)


The white wagtail (Motacilla alba) is a small passerine bird in the family Motacillidae, which also includes pipits and longclaws. The species breeds in much of Europe and the Asian Palearctic and parts of North Africa. It has a toehold in Alaska as a scarce breeder. It is resident in the mildest parts of its range, but otherwise migrates to Africa. In Ireland and Great Britain, the darker subspecies, the pied wagtail or water wagtail (M. a. yarrellii) predominates; this is also called in Ireland willie wagtail, not to be confused with the Australian species Rhipidura leucophrys which bears the same common name. In total, there are between 9 and 11 subspecies of M. alba.

The white wagtail is an insectivorous bird of 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 nests in crevices in stone walls and similar natural and human-made structures.


It is the national bird of Latvia and has featured on the stamps of several countries. Though it is 'of least concern', there are several threats against it, like being kept as pets and being used as food.

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.

25-3-2016 VILLALONGA RESERVOIR, VALENCIA - EUROPEAN SERIN (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.

25-3-2016 VILLALONGA RESERVOIR, VALENCIA - EUROPEAN MOORHEN (Gallinula chloropus)


The common moorhen has a distinctive, slate-black breast, dark black head and neck, olive-green back, white rump, and a white stripe on each flank. This bird stands erect on large yellow legs and feet. Each leg has a red band above the upper joint just below the feathers. The feature that distinguishes it from other gallinules is the bright red shield on the face between the eyes. Size36 cm (14 in.) in length Weight200 to 340 g (7 to 12 oz.) DietThe species is omnivorous and opportunistic with a diet that consists of earthworms, crustaceans, mollusks, adult and larval insects (especially flies, mayflies, bugs, beetles, and butterflies), spiders, small fish, tadpoles, and occasionally birds eggs, algae, moss, aquatic plants, seeds, flowers, berries, and fruit. IncubationMales and females share the task of incubating the eggs. After about 3 weeks, the chicks hatch. The young are able to swim soon after they hatch, but interestingly enough they lose this skill as they mature. Clutch SizeCommon moorhens breed from April to August. The female lays a clutch of 6–10 eggs, and may lay 2–3 clutches in a season.

25-3-2016 VILLALONGA RESERVOIR, VALENCIA - LITTLE EGRET (Egretta garzetta)


The Little egret (Egretta garzetta) is small elegant heron in the family Ardeidae. As an aquatic bird, it feeds in shallow water and on land, consuming a variety of small creatures. At one time common in Western Europe, the Little heron was hunted extensively in the 19th century to provide plumes for the decoration of hats and became locally extinct in Northwestern Europe and scarce in the south. Around 1950, conservation laws were introduced in southern Europe to protect the species and their numbers began to increase.
The plumage of the Little egret is normally entirely white, although there are dark forms with largely bluish-grey plumage. In the breeding season, the adult has two long plumes on the nape that form a crest. These plumes are about 150 mm (6 in) and are pointed and very narrow. There are similar feathers on the breast, but the barbs are more widely spread. 


There are also several elongated scapular feathers that have long loose barbs and may be 200 mm (8 in) long. During the winter the plumage is similar but the scapulars are shorter and more normal in appearance. The bill is long and slender and it and the lores are black. There is an area of greenish-grey bare skin at the base of the lower mandible and around the eye which has a yellow iris. The legs are black and the feet yellow. Juveniles are similar to non-breeding adults but have greenish-black legs and duller yellow feet, and may have a certain proportion of greyish or brownish feathers. The subspecies nigripes differs in having yellow skin between the bill and eye, and blackish feet. During the height of courtship, the lores turn red and the feet of the yellow-footed races turn red.


The breeding range of the western race (E. g. garzetta) includes southern Europe, the Middle East, much of Africa and southern Asia. Northern European populations are migratory, mostly travelling to Africa although some remain in southern Europe, while some Asian populations migrate to the Philippines. The eastern race, (E. g. nigripes), is resident in Indonesia and New Guinea, while E. g. immaculata inhabits Australia and New Zealand, but does not breed in the latter. During the late twentieth century, the range of the little egret expanded northwards in Europe and into the New World, where a breeding population was established on Barbados in 1994. The birds have since spread elsewhere in the Caribbean region and on the Atlantic coast of the United States.

The little egret's habitat varies widely, and includes the shores of lakes, rivers, canals, ponds, lagoons, marshes and flooded land, the bird preferring open locations to dense cover. On the coast it inhabits mangrove areas, swamps, mudflats, sandy beaches and reefs. Rice fields are an important habitat in Italy, and coastal and mangrove areas are important in Africa. The bird often moves about among cattle or other hoofed mammals. 

25-3-2016 MONTE CORONA, VALENCIA - HOUSE SPARROW (FEMALE) (Passer domesticus)


These noisy and sociable birds are found around the world, thanks to their cheerful ability to make the most of humanity's rubbish and wastefulness. But monitoring suggests a severe decline in the UK House Sparrow population, recently estimated as dropping by 71% between 1977 and 2008 with large falls in both rural and urban populations. Their numbers are still dropping in England, Breeding Bird Survey data indicates recent population increases in Scotland, Wales and Northern Ireland.

House Sparrows are aggressive and may evict other species to take over their nest sites.

House Sparrows have lived alongside humans for centuries, taking advantage of spilt grain and food scraps.

They’re the most common bird seen during the Big Garden Birdwatch and if you put up feeders you’re almost certain to see them (they particularly love fat balls and sunflower hearts).

You might also spot them hopping about on city streets, in stations and parks, as well as out in the countryside in hedgerows and on agricultural fields. 

25-3-2016 MONTE CORONA, 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.

26-3-2016 XATIVA, VALENCIA - EURASIAN SPARROWHAWK (Accipiter nisus)


The Eurasian sparrowhawk (Accipiter nisus), also known as the northern sparrowhawk or simply the sparrowhawk, is a small bird of prey in the family Accipitridae. Adult male Eurasian sparrowhawks have bluish grey upperparts and orange-barred underparts; females and juveniles are brown above with brown barring below. The female is up to 25% larger than the male – one of the greatest size differences between the sexes in any bird species. Though it is a predator which specialises in catching woodland birds, the Eurasian sparrowhawk can be found in any habitat and often hunts garden birds in towns and cities. Males tend to take smaller birds, including tits, finches, and sparrows; females catch primarily thrushes and starlings, but are capable of killing birds weighing 500 g (18 oz) or more.

The Eurasian sparrowhawk is found throughout the temperate and subtropical parts of the Old World; while birds from the northern parts of the range migrate south for winter, their southern counterparts remain resident or make dispersive movements. Eurasian sparrowhawks breed in suitable woodland of any type, with the nest, measuring up to 60 cm (24 in) across, built using twigs in a tree. Four or five pale blue, brown-spotted eggs are laid; the success of the breeding attempt is dependent on the female maintaining a high weight while the male brings her food. The chicks hatch after 33 days and fledge after 24 to 28 days.

The probability of a juvenile surviving its first year is 34%, with 69% of adults surviving from one year to the next. Mortality in young males is greater than that of young females and the typical lifespan is four years. This species is now one of the most common birds of prey in Europe, although the population crashed after the Second World War. Organochlorine insecticides used to treat seeds before sowing built up in the bird population, and the concentrations in Eurasian sparrowhawks were enough to kill some outright and incapacitate others; affected birds laid eggs with fragile shells which broke during incubation. However, its population recovered after the chemicals were banned, and it is now relatively common, classified as being of least concern by BirdLife International.

The Eurasian sparrowhawk's hunting behaviour has brought it into conflict with humans for hundreds of years, particularly racing pigeon owners and people rearing poultry and gamebirds. It has also been blamed for decreases in passerine populations. Studies of racing pigeon deaths found that Eurasian sparrowhawks were responsible for less than 1%. Falconers have utilised the Eurasian sparrowhawk since at least the 16th century; although the species has a reputation for being difficult to train, it is also praised for its courage. The species features in Teutonic mythology and is mentioned in works by writers including William Shakespeare, Alfred, Lord Tennyson and Ted Hughes.