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Penquin.jpg 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 sealife caught while swimming underwater. They spend about half of their life on land and half in the oceans.

Kelp_Gull.JPG Seagulls are birds in the family Laridae. They are most closely related to the terns (family Sternidae) 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. They have stout, longish bills, and webbed feet. Gull 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 .
 Common_Tern.jpg Terns are seabirds in the family Sternidae,  They form a lineage with the gulls and skimmers which in turn is related to skuas and auks. Terns have a worldwide distribution.
Most terns were formerly treated as belonging to one large genus Sterna, with the other genera being small. However analysis of DNA sequences supports the splitting of Sterna into several smaller genera
 Cape-gannet.jpg Gannets are seabirds in the family Sulidae, closely related to the boobies.
The gannets are large black and white birds, with long pointed wings and long bills.  Gannets hunt fish by diving from a height into the sea and pursuing their prey underwater. Gannets have a number of adaptations which enable them to do this:
Gannets can dive from a height of 30 m, achieving speeds of 100 km/h as they strike the water, enabling them to catch fish much deeper than most airborne birds
 Shy_albatross.jpg Albatrosses are amongst the largest of flying birds, and the great albatrosses (genus Diomedea) have the largest wingspans of any extant birds. Albatrosses are highly efficient in the air, using dynamic soaring and slope soaring to cover great distances with little exertion. They feed on squid, fish and krill by either scavenging, surface seizing or diving. Albatrosses are colonial, nesting for the most part on remote oceanic islands, often with several species nesting together. Pair bonds between males and females form over several years, with the use of 'ritualised dances', and will last for the life of the pair.
 black_oystercatcher.jpg The different species of oystercatcher/ waders show little variation in shape or appearance. The plumage of all species is either all-black, or black (or dark brown) on top and white underneath. The Variable Oystercatcher is slightly exceptional in being either all-black or pied. They are large, obvious, and noisy plover-like birds, with massive long orange or red bills used for smashing or prying open molluscs. 
 Cormorant.jpg Cormorants are coastal rather than oceanic birds, and some have colonised inland waters.They range around the world, except for the central Pacific islands.
All are fish-eaters, dining on small eels, fish, and even water snakes. They dive from the surface, though many species make a characteristic half-jump as they dive, presumably to give themselves a more streamlined entry into the water. Under water they propel themselves with their feet. Some cormorant species have been found, using depth gauges, to dive to depths of as much as 45 metres.
 Little_Egret.jpg  An egret is any of several herons, most of which are white or buff, and several of which develop fine plumes (usually milky white) during the breeding season. Many egrets are members of the genera Egretta or Ardea which contain other species named as herons rather than egrets. The distinction between a heron and an egret is rather vague, and depends more on appearance than biology. The word "egret" comes from the French word "aigrette", referring to the long filamentous feathers that seem to cascade down an egret's back during the breeding season.

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