2736 x 3648 px | 23,2 x 30,9 cm | 9,1 x 12,2 inches | 300dpi
Date de la prise de vue:
22 janvier 2012
Lieu:
Howell, Michigan, USA
Informations supplémentaires:
Screech owls or Screech-owls are typical owls (Strigidae) belonging to the genus Megascops. Twenty-one living species are known at present, but new ones are frequently recognized and unknown ones are still being discovered on a regular basis, especially in the Andes. For most of the 20th century, this genus was merged with the Old World scops owls in Otus, but nowadays it is again considered separate based on a range of behavioral, biogeographical, morphological and DNA sequence data. Screech owls are restricted to the Americas. Some species formerly placed with them are nowadays considered more distinct. See below for details. The common name "screech owl" is sometimes used for the not closely related Barn Owl as well. As usual for owls, female screech owls are usually larger and fatter than the males of their species, with owls of both sexes being compact in size, shape, and height. The Eastern Screech Owl Megascops asio is one of the smallest species of owls in North America. All of the birds in this genus are small and agile. Screech owls are generally colored in various brownish hues with usually a whitish, patterned underside, which helps to camouflage them against the bark of trees. Some are polymorphic, occurring in a grayish- and a reddish-brown morph. Screech owls hunt from perches in semi-open landscapes. They prefer areas which contain old trees with hollows; these are home to their prey which includes insects, reptiles, small mammals such as bats and mice and other small birds. Screech-owls have a good sense of hearing which helps them locate their prey in any habitat. They also possess well-developed raptorial claws and a curved bill, both of which are used for tearing their prey into pieces small enough to swallow easily. They usually carry their prey back to their nests, presumably to guard against the chance of losing their meal to a larger raptor.
