Weighing from about 80 to 90 grams, this is the smallest owl in eastern
North America.
Its range extends all the way from Alaska to Nova Scotia, and south in
wooded mountains deep into Mexico. The ones on Queen Charlotte Island are
much darker and richer in colour (A. a. brooksi) while the southern Mexican
ones are paler (A. a. brodkorbi) and sometimes hybridize with a southern,
related species endemic to Central America, called the Unspotted Saw-whet
Owl (A. ridgwayi).