Barred Owl (MP3 file 227 kB)
Almost identical to the call of the spotted owl. These territorial owls readily respond to "hooting" and will answer an imitated call.
Boreal Owl (MP3 file 183 kB)
Similar in tone to the saw whet, but delivered in a run of about 12 notes then a pause, then repeated.
Northern Hawk-Owl (MP3 file 281 kB)
These owls may be active by day.
Great Horned Owl (MP3 file 258 kB)
Usually give a five-noted, deep, resonant hoo, hoo-hoo, hoo, hoo song but variations are common.
Northern Saw-whet Owl (MP3 file 331 kB)
These tiny forest owls are quiet most of the year, as they are prey for larger owls. But in the spring they are quite vocal, and males can broadcast this one-note mating call for hours.
Western Screech-Owl (MP3 file 270 kB)
The "bouncing ball" call of the screech owl.
Short-eared Owl (MP3 file 275 kB)
Uncommon owls, found in open country.
Snowy Owl (MP3 file 136 kB)
These big owls are generally silent. This bird in the Alaska Zoo is hissing and clacking its beak.