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Cyathus striatus, commonly known as the fluted bird's nest, [5] [6] is a common saprobic bird's nest fungus with a widespread distribution throughout temperate regions of the world. This fungus resembles a miniature bird's nest with numerous tiny "eggs"; the eggs, or peridioles , are actually lens-shaped bodies that contain spores .
They are birds of deciduous woodlands, parks and gardens, with a preference for open areas amongst trees. They build an open nest in a suitable recess, often against a wall, and will readily adapt to an open-fronted nest box. 4–6 eggs are laid. Most European birds cannot discriminate between their own eggs and those of other species.
The house finch (Haemorhous mexicanus) is a North American bird in the finch family. It is native to Mexico and southwestern United States , but has since been introduced to the eastern part of North America and Hawaii; it is now found year-round in all parts of the United States and most of Mexico, with some residing near the border of Canada .
[31] [32] In buildings, nests are usually constructed against concrete, which provides adhesion similar to that of rock, but metal walls are sometimes used, and nests may be supported on beams or other horizontal supports. Birds sometimes breed in occupied buildings, and there is a record of a pair nesting in a busy restaurant kitchen.
Hirundo species also build open nests, Delichon house martins have a closed nest, and the Cecropis and Petrochelidon swallows have retort-like closed nests with an entrance tunnel. [ 8 ] The genus Ptyonoprogne is closely related to the larger swallow genus, Hirundo , but a DNA analysis published in 2005 showed that a coherent enlarged Hirundo ...
The house bunting breeds around human habitation, laying two to four eggs in a nest in a hole in a wall or building. Its natural food consists seeds, or when feeding young, insects. It is 14 cm long, similar in size to the striolated bunting and smaller than the rock bunting. The breeding male has a sandy orange-brown body and a grey head ...
Nests have been recorded from the eaves of buildings, on creepers on walls, in holes in earth banks, and in holes in haystacks. Sometimes the Cape sparrow nests in the disused nests of other birds, such as weavers and swallows. Pairs that nest away from colonies usually choose low bushes or utility poles as nesting sites. [20]
The typical nest is a grass or feather-lined deep closed mud bowl with a small opening at the top, [12] but many Asian house martins leave the top of the nest open. [ 20 ] [ 21 ] [ 22 ] David Winkler and Frederick Sheldon believe that evolutionary development in the mud-building swallows, and individual species follow this order of construction.