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The barn owl, although also by nature a cavity nester, does not generally acclimate to well-wooded areas where the tawny owl is at home. [107] Both the long-eared and barn owls prefer voles where they are available, especially as both often hunt in open areas where they are common, whereas Apodemus mice tend to be slightly preferred by tawny owls.
The European owls with the most similar diets to eagle-owls are 475 g (1.047 lb) tawny (Strix aluco) and 785 g (1.731 lb) Ural owls (Strix uralensis), although both are considerably smaller and less powerful and more specialized to hunt in wooded environments.
Ashy-faced owl Ashy-faced owl Conservation status Least Concern (IUCN 3.1) CITES Appendix II (CITES) Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Aves Order: Strigiformes Family: Tytonidae Genus: Tyto Species: T. glaucops Binomial name Tyto glaucops (Kaup, 1852) The ashy-faced owl (Tyto glaucops) is a species of bird in the barn-owl family Tytonidae. It ...
Compared to other owls of similar size, the barn owl has a much higher metabolic rate, requiring relatively more food. Relative to its size, barn owls consume more rodents. Studies have shown that an individual barn owl may eat one or more voles (or their equivalent) per night, equivalent to about fourteen percent of the bird's bodyweight.
Tawny and brown fish owls are both slightly smaller than co-occurring Eurasian eagle-owls, and Blakiston's fish owls are similar or slightly larger than co-occurring large northern eagle-owls. Fish owls, being tied to the edges of fresh water, where they hunt mainly fish and crabs, also have slightly differing, and more narrow, habitat preferences.
Unlike the more versatile eagle and horned owls, great grey owls rely almost fully upon small rodents. What species they eat depends on which small mammals are most abundant and available. In northern Canada and other parts of Scandinavia, they eat lemmings primarily. In dry parts of California's Sierra Nevada they eat mostly pocket gophers.
Owls are divided into two families: the true (or typical) owl family, Strigidae, and the barn owl and bay owl family, Tytonidae. [2] Owls hunt mostly small mammals, insects, and other birds, although a few species specialize in hunting fish. They are found in all regions of the Earth except the polar ice caps and some remote islands.
This diet is similar to the northern spotted owl, and the addition of barred owls to the northern spotted owl’s range creates increased competition for food. [7] In the same areas, northern spotted owls require around three to four times more range than barred owls, which places more strain on the northern spotted owls. [8]