The
Western Screech-Owl is a very common owl of western North America.
They can be found from forest lands in Alaska southward through deserts of
the American Southwest, and into Mexico. They are very similar in
appearance to the Eastern Screech-Owl,
and until 1983, both were considered one species. Either the Eastern
Screech Owl or Western Screech-Owl can be found in much of the Americas, but
the two have different voices. In the very small area where the two
species' ranges overlap, voice is practically the only feature that can used
to distinguish between them. As with the Eastern Screech Owl, Western
Screech Owls have adapted quite well to a human presence, and can often be
found in urban parks and forests as well as in more natural woodlands,
although their nocturnal nature makes them an often unseen presence.
Habitat: Western Screech-Owls can be found in a
variety of vegetated habitats. Throughout much of their range, they
are primarily found in open forest and along forest edges and clearings.
In desert areas, they can be found in areas of Saguaro and other large
cactus. They typically are not found in higher-elevation forests.
Diet: The diet of a Western Screech-Owl consists
of a variety of small creatures. Large insects and spiders make up a
large portions in many locations when available, but they will also feed on
small rodents, small birds, small snakes, lizards, frogs, amphibians, and
occasionally, fish and crayfish.
Behavior: Nocturnal, feeding at dusk and through
the night. Most hunting is done by observing from a perch and swooping
out to catch prey in its talons when spotted. They are also capable of
catching insects in flight.
Nesting: The nest of a Western Screech-Owl is most
often a cavity in a tree. In range they will also use cavities in
large cactus. They have also adapted to use cavities in man-made
objects such as telephone poles and specially constructed nest boxes.
Song: Song of a Western Screech Owl is a series of
whistling notes that accelerate in pace, with lower notes towards the end.
They also have other barking, cackling, or hooting sounds.
Migration: Considered a permanent resident
throughout its range.
Conservation Status: There are currently no
perceived major threats to Western Screech-Owl populations, and
the IUCN cites it as a species of "Least Concern".