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A '''nest''' is a place of refuge to hold an animal's [[Egg (biology)|egg]]s and/or provide a place to raise their offspring. They are usually made of some [[life|organic]] material such as [[twig]]s, [[grass]], and [[leaf|leaves]]; or may simply be a depression in the ground, or a hole in a tree, rock or building. Human-made materials, such as string, plastic, cloth, hair or paper, may be used.
A '''nest''' is a place of refuge to hold an animal's [[Egg (biology)|egg]]s and/or provide a place to raise their offspring. They are usually made of some [[life|organic]] material such as [[twig]]s, [[grass]], and [[leaf|leaves]]; or may simply be a depression in the ground, or a hole in a tree, rock or building. Human-made materials, such as string, plastic, cloth, hair or paper, may be used.


Generally each species has a distinctive style of nest. Nests can be found in many different [[habitat (ecology)|habitats]].
Generally each species has a distinctive style of nest. Nests can be found in many different [[habitat]]s.


Nests are built primarily by [[bird]]s, but also by [[mammal]]s, [[fish]], [[insect]]s and [[reptile]]s.
Nests are built primarily by [[bird]]s, but also by [[mammal]]s, [[fish]], [[insect]]s and [[reptile]]s.
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Image:American Robin nest.jpg|Single egg in the nest of an [[American Robin]]
Image:American Robin nest.jpg|Single egg in the nest of an [[American Robin]]
Image:Bird nest in grass.jpg|Nest in grass
Image:Bird nest in grass.jpg|Nest in grass
Image:crows.nests.arp.750pix.jpg|[[Rook]] and [[Eurasian Jackdaw]] nests
Image:crows.nests.arp.750pix.jpg|[[Rook (bird)|Rook]] and [[Jackdaw|Eurasian Jackdaw]] nests
Image:Great horned owl chick 3w.jpg|3 [[Great Horned Owl]] chicks in their nest
Image:Great horned owl chick 3w.jpg|3 [[Great Horned Owl]] chicks in their nest
Image:Inside a nest.jpg|The inside of a bird's nest
Image:Inside a nest.jpg|The inside of a bird's nest

Revision as of 19:21, 12 October 2008

A basket style nest

A nest is a place of refuge to hold an animal's eggs and/or provide a place to raise their offspring. They are usually made of some organic material such as twigs, grass, and leaves; or may simply be a depression in the ground, or a hole in a tree, rock or building. Human-made materials, such as string, plastic, cloth, hair or paper, may be used.

Generally each species has a distinctive style of nest. Nests can be found in many different habitats.

Nests are built primarily by birds, but also by mammals, fish, insects and reptiles.

They may have some or all of the following zones: attachment; outer decorative layer; structural layer; lining.

Some birds will build nests in trees, some (such as vultures, eagles, and many seabirds like Kittiwakes) will build them on rocky ledges, and others nest on the ground or in burrows.

Bird nest

Baby Blue Jays in a nest

Most species of birds build some sort of nest, though some lay their eggs directly onto rock ledges or bare soil without first modifying the area. Nest types vary from the very simple scrape, which is merely a shallow depression in soil or vegetation, to the elaborately woven pendant or sphere; some bird species use cavities in trees or dig burrows into the ground.

Names of nests

References

  • Hansell, Bird nests and construction behaviour, CUP 2005, ISBN 0-521-01764-5

See also