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In most seabird colonies several different species will nest on the same colony, often exhibiting some niche separation. Seabirds can nest in trees (if any are available), on the ground (with or without nests), on cliffs, in burrows under the ground and in rocky crevices. Colony size is a major aspect of the social environment of colonial birds.
The term seabird is used for many families of birds in several orders that spend the majority of their lives at sea. Seabirds make up some, if not all, of the families in the following orders: Procellariiformes, Sphenisciformes, Pelecaniformes, and Charadriiformes. Many seabirds remain at sea for several consecutive years at a time, without ...
Permanent link; Page information ... The Sign of Love: Book 2 is a 2014 ... from September 15 to November 7, 2014, from Mondays to Fridays at 19:10 for 40 episodes ...
The plumage of seabirds is thought in many cases to be for camouflage, both defensive (the colour of US Navy battleships is the same as that of Antarctic prions, [20] and in both cases it reduces visibility at sea) and aggressive (the white underside possessed by many seabirds helps hide them from prey below). The usually black wing tips help ...
The majority of sea terns have light grey or white body plumage as adults, with a black cap to the head. The legs and bill are various combinations of red, orange, yellow, or black depending on species. The pale plumage is conspicuous from a distance at sea, and may attract other birds to a good feeding area for these fish-eating species.
The Antarctic tern prefers rocky areas such as islets, with or without vegetation, often among other seabird species. It usually nests on cliffs but is also found on rocky beaches, places inaccessible to cats or rats. It also avoids beaches with sea lions, as they tend to occupy all flat areas.
They are also long-lived: a Manx shearwater breeding on Copeland Island, Northern Ireland, was (as of 2003/2004) the oldest known wild bird in the world; ringed as an adult (when at least 5 years old) in July 1953, it was retrapped in July 2003, at least 55 years old (also now exceeded, by a Laysan albatross). Manx shearwaters migrate over ...
The genus Sula was introduced by the French zoologist Mathurin Jacques Brisson in 1760. [3] The type species is the brown booby. [4] The name is derived from súla, the Old Norse and Icelandic word for the other member of the family Sulidae, the gannet.