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The barn swallow will mob intruders such as cats or accipiters that venture too close to their nest, often flying very close to the threat. [60] Adult barn swallows have few predators, but some are taken by accipiters, falcons, and owls. Brood parasitism by cowbirds in North America or cuckoos in Eurasia is rare. [6] [37]
Four nests – two on our garage, one behind the house and one behind the barn. Cliff Swallows craft their jug-like nests from mud I’ve mentioned my experiences with these neat swallows over the ...
Mud-nesting species in particular are limited in areas of high humidity, which causes the mud nests to crumble. Many cave-, bank-, and cliff-dwelling species of swallows nest in large colonies. Mud nests are constructed by both males and females, and amongst the tunnel diggers, the excavation duties are shared, as well.
The nest is a structure of primarily three levels: the first level acts as a foundation and is usually made up of twigs, mud, small pebbles, and in at least a few reported cases, small river mollusk shells were used; the second level of the nest is made up of grasses, finer smaller twigs; the third level of construction composing the nest is a ...
The bird genus Hirundo is a group of passerines in the family Hirundinidae (swallows and martins). The genus name is Latin for a swallow. [1] These are the typical swallows, including the widespread barn swallow. Many of this group have blue backs, red on the face and sometimes the rump or nape, and whitish or rufous underparts. With fifteen ...
The cliff swallow's average body length is 13 cm (5.1 in), and they have short legs and small bills with relatively long pointed wings. [5] [6] Adult cliff swallows have an overall dark brownish plumage covering both their back and wings, and they have a characteristic white forehead, rich red-coloured cheeks with a dark throat, basic white underparts and a buffy-coloured rump.
The nest, built by both adults over several weeks, is made from several hundred mud pellets and lined with soft dry grass or sometimes feathers. It may be a half-cup when constructed under an overhang on a vertical wall or cliff, or shaped as a bowl like that of the barn swallow when placed on a sheltered ledge.
The eastern red-rumped swallow breeds from April to July alone or semi-colonially with scattered nests. The nest is a retort or bottle-shaped structure, made from mud pellets and lined with dried grasses and feathers. The clutch is usually four, sometimes five, white eggs. Both sexes build the nest, and share incubation and the care of the young.