25-2-2016 ALBUFERA, VALENCIA - EURASIAN KESTREL (Falco tinnunculus)

The Common kestrel (Falco tinnunculus) is a bird of prey species that belongs to the falcon family Falconidae. This species occurs over a large range and in Britain, where no other kestrel species commonly occurs, it is generally just called "kestrel".

Common kestrels are small compared with other raptors, but larger than most songbirds. They are mainly light chestnut brown in color with blackish spots on the upperside and buff with narrow blackish streaks on the underside; the remiges are also blackish. The males have fewer black spots and streaks and their cap and tail are blue-grey. The tail is brown with black bars in females and has a black tip with a narrow white rim in both sexes. All Common kestrels have a prominent black malar stripe like their closest relatives. The cere, feet, and a narrow ring around the eye are bright yellow; the toenails, bill, and iris are dark. Juveniles look like adult females, but the underside streaks are wider; the yellow of their bare parts is paler.

Common kestrels are found in Europe, Asia, and Africa. These birds are sedentary but in the cold parts of their range, they migrate south in winter. Common kestrels live in open habitats such as tundra, taiga, grassland, shrubland, marshland, fields, and heaths. They can also be found in forested areas and readily adapt to human settlement, as long as sufficient swathes of vegetation are available. They also occur in wetlands, moorlands, arid savanna, and from the sea to the lower mountain range.

Common kestrels are usually seen alone but sometimes may travel in small flocks and nest in loose colonies. These birds hunt by day hovering about 10-20 m (35-65 ft) above the ground, searching for prey, either by flying into the wind or by soaring using ridge lift. Like most birds of prey, Common kestrels have keen eyesight enabling them to spot small prey from a distance. Once prey is sighted, the bird makes a short, steep dive toward the target. They often hunt along the sides of roads and motorways. Another favorite (but less conspicuous) hunting technique is to perch a bit above the ground cover, surveying the area. When the bird spots prey animals moving by, it will pounce on them. They also prowl a patch of hunting ground in a ground-hugging flight, ambushing prey as they happen across it. Common kestrels communicate with each other using various calls. When alarmed they utter 'kii-kii-kiikii' and in flight, the birds produce a 'kik-kik' call.

Population size

4.3-6.7 Mlnlnn

Life Span

15-18 years

Weight

136-314

goz

g oz 

Length

32-39

cminch

cm inch 

Wingspan

65-82

cminch

Common kestrels are monogamous and form long-lasting pair bonds. They start breeding in April or May in temperate Eurasia and between August and December in the tropics and southern Africa. Common kestrels nest in cavities, preferring holes in cliffs, trees, or buildings; in built-up areas, the birds will often nest on buildings and will reuse the old nests of other birds. Common kestrels are usually solitary nesters but may sometimes nest in loose colonies. The female lays a clutch of 3 to 7 eggs. Incubation lasts around 4 weeks, and only the female incubates the eggs. The male is responsible for providing her with food, and for some time after hatching this remains the same. Later, both parents share brooding and hunting duties until the young fledge, after 4-5 weeks. The family stays close together for a few weeks, during which time the young learn how to fend for themselves and hunt prey. They become reproductively mature and are ready to breed for the first time by the next breeding season.

25-2-2016 ALBUFERA, VALENCIA - WESTERN CATTLE EGRET (MALE) (Bubulcus ibis)

Population size

4-9.8 Mlnlnn

Life Span

23 years

Top speed

51

km/hmph

km/h mph 

Weight

270-512

goz

g oz 

Length

46-56

cminch

cm inch 

Wingspan

88-96

cminch

The Cattle egret (Bubulcus ibis) is a cosmopolitan species of heron named for its association with cattle. It is the only member of the monotypic genus Bubulcus, although some authorities regard its two subspecies as full species, the Western cattle egret and the Eastern cattle egret. Despite the similarities in plumage to the egrets of the genus Egretta, it is more closely related to the herons of Ardea.

The Cattle egret is a stocky bird. It has a relatively short, thick neck, a sturdy bill, and a hunched posture. The nonbreeding adult has mainly white plumage, a yellow bill, and greyish-yellow legs. During the breeding season, adults of the nominate western subspecies develop orange-buff plumes on the back, breast, and crown, and the bill, legs, and irises become bright red for a brief period prior to pairing. The sexes are similar, but the male is marginally larger and has slightly longer breeding plumes than the female; juvenile birds lack coloured plumes and have a black bill.

25-2-2016 ALBUFERA, VALENCIA - BOOTED EAGLE (Hieraaetus pennatus)

The Booted eagle (Hieraaetus pennatus) is a small mostly migratory bird of prey with a wide distribution. Despite its small size, the Booted eagle is a fierce hunter that usually captures and kill its prey in its powerful talons.

There are two relatively distinct plumage forms of the Botted eagle. Pale birds are mainly light grey with a darker head and flight feathers. The other form has mid-brown plumage with dark grey flight feathers.

Booted eagles breed in many different regions in both the northern and southern hemisphere. These include southern Europe, North Africa, and across Asia, and also in western South Africa and Namibia. The northern populations are migratory spending November to February in Sub-Saharan Africa and South Asia, while the small southern African populations are sedentary. Booted eagles prefer to live in wooded, often hilly countryside with some open areas. They breed in rocky, broken terrain but migrants may use almost any type of habitat except the dense forest. The birds of the Palearctic breeding population usually nest in coniferous or deciduous woodlands and often in trees.

Booted eagles are active during the day and are typically seen in pairs or as solitary individuals. They fly at relatively low heights, making them conspicuous. Booted eagles typically hunt on the wing, stooping quickly with wings folded in and feet extended. They can also catch insects while walking on the ground. The common call of Booted eagles is a shrill 'kli-kli-kli'.

Booted eagles are monogamous. They form strong pair bonds that last for life. With the start of the breeding season, pairs can be seen circling high above in spectacular display. Egg-laying takes place between March and June. The female lays 1-2 eggs in a nest built from sticks and lined with green leaves in a tree or on a crag, or it takes over the disused nest of another large bird such as a Black kite or Grey heron. The female incubates the egg for around 45 days and is fed by the male during this time. After hatching she guards the nest and the young while the male provides all the food. The chicks fledge after 50-55 days and continue to be fed by both parents for another 2 weeks.

Population size

150-195 Thou

Life Span

12-15 years

Weight

510-1025

goz

g oz 

Length

40

cminch

cm inch 

Wingspan

110-132

cminch

cm inch 

3-1-2016 HONG KONG - SACRED IBIS (Threskiornis aethiopicus) (COURTESY VALERIE FISHER)

The African sacred ibis (Threskiornis aethiopicus ) is a wading bird native to Africa and the Middle East. It is especially known for its role in the religion of the Ancient Egyptians, where it was linked to the god Thoth; despite this, the species is currently extirpated from Egypt.

African sacred ibises have all-white body plumage apart from dark plumes on the rump. Males are generally slightly larger than females.

The bald head and neck, thick curved bill, and legs of these birds are black. The white wings show a black rear border in flight. The eyes are brown with a dark red orbital ring. Sexes are similar, but juveniles have dirty white plumage, a smaller bill and some feathering on the neck, greenish-brown scapular, and more black on the primary coverts.

Population size

200-450 Thou

Life Span

20 years

Weight

1.3-1.5

kglbs

kg lbs 

Length

68

cminch

cm inch 

Wingspan

112-124

cminch

cm inch 

4-12-2016 JURONG, SINGAPORE - WHITE WINGED DUCK (Asarcornis scutulata)

The white-winged duck or white-winged wood duck (Asarcornis scutulata ) is a large species of duck, formerly placed in the genus Cairina with the Muscovy duck (Cairina moschata ) and allied with the dabbling ducks. However, mtDNA cytochrome b and NADH dehydrogenase subunit 2 sequence analysis indicate that the anatomical similarity to the Muscovy duck is deceiving and that the species is appropriately placed in a monotypic genus, as Asarcornis scutulata, which is evolutionarily closer to the redhead (Aythya americana, one of the diving ducks).

White-winged ducks are among the world’s most endangered birds and are one of the biggest species of duck. In Assamese it is known as ‘Deo Hans’ or spirit duck because of its ghostly call. Its body is black and its head is white and thickly spotted with black, it has conspicuous white patches on its wings and orange or red eyes. The male and female look alike, the male having glossier feathers and being much larger and heavier.

White-winged ducks cannot easily be seen in the wild, as they spend their time hidden in trees. They are usually found in pairs or groups of four to six, sometimes more than ten. They love shade and most of the day will find them in secluded jungle pools, sometimes perching on trees during the day. Being crepuscular, they are most active during dusk and dawn. At night their loud calls echo throughout the forest, from a distance, sounding like a ghost. These birds molt annual in September or October, being flightless for a fortnight, when they move into more densely forested swampy areas for protection from predators.

Population size

350-1,500

Life Span

10-15 years

Weight

2-4

kglbs

kg lbs 

Length

66-81

cminch

cm inch 

Wingspan

116-153

cminch

24-2-2016 VILLALONGA RESERVOIR, VALENCIA - WHITE WAGTAIL (Motacilla alba)

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 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.

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.

This species breeds throughout Eurasia up to latitudes 75°N, only being absent in the Arctic from areas where the July isotherm is less than 4 °C. It also breeds in the mountains of Morocco and western Alaska. It occupies a wide range of habitats, but is absent from deserts. White wagtails are residents in the milder parts of its range such as western Europe and the Mediterranean, but migratory in much of the rest of its 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.

24-2-2016 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.

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.

4-12-2015 SIEM REAP, CAMBODIA - COMMON ROSE SWALLOWTAIL BUTTERFLY (Pachliopta aristolochiae)

Pachliopta aristolochiae, the common rose, is a swallowtail butterfly belonging to the genus Pachliopta, the roses, or red-bodied swallowtails. It is a common butterfly which is extensively distributed across south and southeast Asia.

It is widely distributed in Asia including Afghanistan, Pakistan, India (including the Andaman Islands), Nepal, Sri Lanka, Myanmar, Thailand, Japan (south-western Okinawa only), Laos, Vietnam, Cambodia, Nicobar Islands, peninsular and eastern Malaysia, Brunei, Philippines (Palawan and Leyte), Indonesia, Bangladesh and Taiwan.

In China, it is distributed in southern and eastern China (including Hainan, Guangdong province) and Hong Kong. In Indonesia, it is distributed in Sumatra, Nias, Enggano, Bangka, Java, Bali, Kangean, Lombok, Sumbawa, Sumba, Flores, Tanahjampea, and Kalimantan.

It is very common almost all over the plains of India, and is not threatened as a species. During and after the monsoon it is extremely abundant.