The barn owl is nocturnal over most of its range; but in Great Britain and some Pacific Islands, it also hunts by day. Barn owls specialise in hunting animals on the ground and nearly all of their food consists of small mammals, which they locate by sound, their hearing being very acute. The owls usually mate for life unless one of the pair is killed, whereupon a new pair bond may be formed. Breeding takes place at varying times of the year, according to the locality, with a clutch of eggs, averaging about four in number, being laid in a nest in a hollow tree, old building, or fissure in a cliff. The female does all the incubation, and she and the young chicks are reliant on the male for food. When large numbers of small prey are readily available, barn owl populations can expand rapidly; and globally the bird is considered to be of least conservation concern. Some subspecies with restricted ranges are more threatened.
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21 сен 2024
