Showing posts with label Seabirds. Show all posts
Showing posts with label Seabirds. Show all posts
Friday, 6 July 2012
Tuesday, 3 January 2012
Terns
Terns are seabirds. They form a lineage with the gulls and skimmers which in turn is related to skuas and auks. Terns have a worldwide distribution.


Black Skimmer
The Skimmers are a small family of tern-like birds. The family comprises three species found in South Asia, Africa, and the Americas. They are tropical and subtropical species which lay 3-6 eggs on sandy beaches.



An Auk
An auk is a sea bird. Auks are superficially similar to penguins due to their black-and-white colours, their upright posture and some of their habits. Unlike penguins, modern auks can fly. They are good swimmers and divers. Due to their short wings, auks have to flap their wings very quickly in order to fly. Auks live on the open sea and only go ashore for breeding.


Sunday, 16 October 2011
Seagull
Seagulls are birds in the family Laridae. They are usually called Gulls also. They are typically medium to large birds, usually grey or white, often with black markings on the head or wings. They typically have harsh wailing or squawking calls, stout, longish bills, and webbed feet. Seagull species range in size from the Little Gull, at 120 g and 29 cm, to the Great Black-backed Gull, at 1.75 kg and 76 cm.
Image of flying seagull
Penguin
Penguins are a group of aquatic, flightless birds living almost exclusively in the southern hemisphere, especially in Antarctica. Highly adapted for life in the water, penguins have countershaded dark and white plumage, and their wings have become flippers. Most penguins feed on krill, fish, squid, and other forms of sea life caught while swimming underwater. They spend about half of their lives on land and half in the oceans. All penguin species are native to the southern hemisphere. The largest living species is the Emperor Penguin adults average about 1.1 m tall and weigh 35 kg or more. The smallest penguin species is the Little Blue Penguin, also known as the Fairy Penguin, which stands around 40 cm tall and weighs 1 kg.
Image of penguins
Puffin
Puffins are pelagic seabirds that feed primarily by diving in the water. They breed in large colonies on coastal cliffs or offshore islands, nesting in crevices among rocks or in burrows in the soil. Two species, the Tufted Puffin and Horned Puffin, are found in the North Pacific Ocean, while the Atlantic Puffin is found in the North Atlantic Ocean. All puffin species have predominantly black or black and white plumage, a stocky build, and large beaks. They shed the colourful outer parts of their bills after the breeding season, leaving a smaller and duller beak. Their short wings are adapted for swimming with a flying technique under water. In the air, they beat their wings rapidly (up to 400 times per minute) in swift flight, often flying low over the ocean's surface.
Image of flying puffin
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