Bird / Asio otus

Long-Eared Owl

LC

Lowest risk

Vagrant

The long-eared owl, also known as the northern long-eared owl or, more informally, as the lesser horned owl or cat owl, is a medium-sized species of owl with an extensive breeding range. The scientific name is from Latin. The genus name Asio is a type of eared owl, and otus also refers to a small, eared owl. The species breeds in many areas through Europe and the Palearctic, as well as in North America. This species is a part of the larger grouping of owls known as typical owls, of the family Strigidae, which contains most extant species of owl.

Range elevation
0 to 2000 m
Range mass
220 to 435 g
Range length
35 to 40 cm
Range wingspan
90 to 100 cm
Average basal metabolic rate
0.954 W
Breeding interval
Long-eared owls breed once yearly.
Breeding season
Long-eared owls breed between February and July.
Range eggs per season
2 to 10
Average eggs per season
5-6
Average eggs per season
4
Range time to hatching
25 to 30 days
Average time to hatching
26-28 days
Average fledging age
21 days
Average time to independence
8-9 weeks
Average age at sexual or reproductive maturity (female)
1 years
Average age at sexual or reproductive maturity (male)
1 years
Range lifespan
Status: wild
27.8 (high) years
Average lifespan
Status: wild
133 months

Ivory, A. 1999. "Asio otus" (On-line), Animal Diversity Web. Accessed November 10, 2020 at https://animaldiversity.org/accounts/Asio_otus/

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