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This genus of blue-backed swallows is sometimes called the "barn swallows". [14] [7] The Oxford English Dictionary dates the English common name "barn swallow" to 1851, [15] though an earlier instance of the collocation in an English-language context is in Gilbert White's popular book The Natural History of Selborne, originally published in 1789:
In Britain, the sand martin is the first of its family to appear on its breeding grounds, arriving from the middle of March, a week or two in advance of the barn swallow. In northern Ohio , they arrive in numbers by mid-April, about 10 days earlier than they did 100 years ago.
These roosts can be enormous; one winter-roosting site of barn swallows in Nigeria attracted 1.5 million individuals. [33] Nonsocial species do not form flocks, but recently fledged chicks may remain with their parents for a while after the breeding season.
The winter range in northern Australia overlaps with that of wintering barn swallow (Hirundo rustica), but the latter is readily separable by its blue breast band. [9] Welcome swallows readily breed close to human habitation. Welcome swallows are commonly found on wires, posts and other perches. [10]
The western house martin is similar in habits to other aerial insectivores, including other swallows and martins and the unrelated swifts, and catches insects in flight. [9] In the breeding areas, flies and aphids make up much of the diet, and in Europe, the house martin takes a larger proportion of aphids and small flies than the barn swallow. [9]
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The wire-tailed swallow is a member of the genus Hirundo, a cosmopolitan group of "barn swallows". It has two subspecies: [5] H. s. smithii was first described by William Elford Leach and K. D. Koenig in 1818. [6] Known as the African wire-tailed swallow, it is found throughout Africa. [5]
When do hummingbirds leave Ohio? Winter migration starts soon. Here's what to know. Gannett. Alex Perry, Columbus Dispatch. August 9, 2024 at 10:22 AM.