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The Red-footed Booby (Sula sula) is a large seabird of the booby family, Sulidae.This bird is the smallest of all boobies at about 70 centimetres (28 in) in length and with a wingspan of up to 1 metre (3.3 ft). It has red legs, and its bill and throat pouch are coloured pink and blue. This species has several morphs. In the white morph the plumage is mostly white (the head often tinged yellowish) and the flight feathers are black. The black-tailed white morph is similar, but with a black tail, and can easily be confused with the Nazca and Masked Boobies. The brown morph is overall brown. The white-tailed brown morph is similar, but has a white belly, rump, and tail. The white-headed and white-tailed brown morph has a mostly white body, tail and head, and brown wings and back. The morphs commonly breed together, but in most regions one or two morphs predominates; e.g. at the Galápagos Islands, most belong to the brown morph, though the white morph also occurs.The sexes are similar, and juveniles are brownish with darker wings, and pale pinkish legs, while chicks are covered in dense white down.
This species breeds on islands in most tropical oceans. When not breeding it spends most of the time at sea, and is therefore rarely seen away from breeding colonies. It nests in large colonies, laying one chalky blue egg in a stick nest, which is incubated by both adults for 44–46 days. The nest is usually placed in a tree or bush, but rarely it may nest on the ground. It may be three months before the young first fly, and five months before they make extensive flights.Red-footed Booby pairs may remain together over several seasons. They perform elaborate greeting rituals, including harsh squawks and the male's display of his blue throat, also including short dances.These are spectacular divers, plunging into the ocean at high speeds to catch prey. They mainly eat small fish or squid which gather in groups near the surface.for more images.....

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The Bar-headed Goose is one of the world's highest-flying birds,having been heard flying across Mount Makalu – the fifth highest mountain on earth at 8,481 m (27,825 ft) – and apparently seen over Mount Everest – 8,848 m (29,029 ft) – although this is a second-hand report with no verification.This demanding migration has long puzzled physiologists and naturalists: there must be a good explanation for why the birds fly to the extreme altitudes... particularly since there are passes through the Himalaya at lower altitudes, and which are used by other migrating bird species.In fact, bar-headed geese have never been directly tracked (using GPS or satellite logging technology) flying higher than 6,540 metres (21,460 ft), and it is now believed that they do take the high passes through the mountains. The challenging northward migration from lowland India to breed in the summer on the Tibetan Plateau is undertaken in stages, with the flight across the Himalaya (from sea-level) being undertaken non-stop in as little as seven hours. Surprisingly, despite predictable tail winds that blow up the Himalayas (in the same direction of travel as the geese), bar-headed geese spurn these winds, waiting for them to die down overnight.This bird is pale grey and is easily distinguished from any of the other grey geese of the genus Anser by the black bars on its head. It is also much paler than the other geese in this genus. In flight, its call is a typical goose honking. A mid-sized goose, it measures 71–76 cm (28–30 in) in total length and weighs 1.87–3.2 kg (4.1–7.1 lb). for different pics....

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The Blue-footed Booby is on average 81 cm (32 in) long and weighs 1.5 kg (3.3 lb), with females being slightly larger than males. The species can reach 70 to 90 cm in height, with a wingspan of up to 1.5 m.The wings are long and pointed, and are brown in color. The neck and head are brown with white streaks and the belly and underside are white.The booby's eyes are placed on either side of their bill and oriented towards the front, enabling excellent binocular vision. This animal eyes are yellow, with males having more yellow in their irises than the females. The Blue-footed Booby has permanently closed nostrils made for diving, necessitating breathing through the corners of their mouths. Their webbed feet range from a pale turquoise to a deep aquamarine in color. Males and younger birds are observed to have lighter feet than females.
The Blue-footed Booby's diet consists mainly of fish. These are specialized fish eaters feeding on small school fish like sardines, anchovies, mackerel, and flying fish. They also feed on squid and offal. The Blue-foot dives into the ocean, sometimes from a great height, and can swim underwater in pursuit of its prey. It hunts singly, in pairs, or in larger flocks. Blue-foots travel in parties of about 12 to areas of water with large schools of small fish. When the lead bird sees a fish shoal in the water, it will signal the rest of the group and they will all dive together, pointing their bodies down like arrows and diving into the water in unison.
Plunge diving can be done from heights of 33–100 ft (10–30.5 m) and even up to 330 ft (100 m). These birds hit the water around 60 mph (97 km/h) and can go to depths of 82 ft (25 m) below the water surface. The specie's skulls contain special air sacs that protect the brain from the enormous pressure.The prey are usually eaten while the birds are still underwater. Surprisingly, individuals do not eat with the hunting group, preferring to eat on their own, usually in the early morning or late afternoon. Males and females fish differently, which may contribute to why Blue-foots, unlike other boobies, raise more than one young. The male is smaller and the tail is larger for its body, which enables the male to fish in shallow areas instead of just deep waters. The tail can flatten out, enabling him to change direction in the shallow water. The female is larger and can carry more food, which is regurgitated to the young at the nest. The males feed the young for the first part of the incubation period, because the males can bring back food more quickly than the female. When the demand for more food increases, the female begins to provide the food to the young.for more pics......