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Seabirds generally live longer, breed later and have fewer young than other birds, but they invest a great deal of time in their young. Most species nest in colonies, varying in size from a few dozen birds to millions.
Fowlsheugh Nature Reserve, Aberdeenshire, Scotland. Fowlsheugh is a coastal nature reserve in Kincardineshire, northeast Scotland, known for its 70-metre-high (230 ft) cliff formations and habitat supporting prolific seabird nesting colonies.
A flock of barnacle geese during autumn migration Examples of long-distance bird migration routes. Bird migration is a seasonal movement of birds between breeding and wintering grounds that occurs twice a year.
The Atlantic puffin (Fratercula arctica), also known as the common puffin, is a species of seabird in the auk family.It is the only puffin native to the Atlantic Ocean; two related species, the tufted puffin and the horned puffin being found in the northeastern Pacific.
They nest in burrows and often give eerie contact calls on their night-time visits. They lay a single white egg. They lay a single white egg. The chicks of some species, notably short-tailed and sooty shearwaters, are subject to harvesting from their nest burrows for food, a practice known as muttonbirding , in Australia and New Zealand.
Fulmar eggs were collected until the late 1920s in the St Kilda islands by their men scaling the cliffs. The eggs were buried in St Kilda peat ash to be eaten through the cold, northern winters. The eggs were considered to taste like duck eggs in taste and nourishment. [16]
Their nest is a scrape on a grassy ledge or a saucer of vegetation on the ground, lined with softer material. The birds nest in large colonies [3] [7] [18] [21] [22] Recently, they have started nesting on rooftops and buildings. [3] Both sexes are involved in the nest-building process. [7]
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.