quarta-feira, 11 de fevereiro de 2009

About seabirds…

Gannet (Morus bassanus) courtesy of Mar Ilimitado


Seabirds are considered those birds that spend most of their time in ocean, coming to land only for nest.
They feed on sea, capturing fishes on the surface normally associated with schools of larger pelagic. For the fisherman they can be a good indicator of fish, for example tuna fish.
In this group you can find, for example the gannets, petrels and shearwaters.
Shearwaters are superb flyers and travel large distances on sea. On the other way, are unable to walk well on land. In a way to avoid predators, they return land during the night and spend their time on burrows.
Gannets are among the most spectaculars sights in European bird watching. Breeding in small number, but in large colonies, normally choose small offshore island to put their eggs.
You can find more information about these birds in Portuguese coast in here.

Source: Hayman, P. , Hume,R. , 2007. Bird, the ultimate illustrated guide to the birds of Brittain and Europe.
Hume, P. , 2006. Birds of Britain and Europe.


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