Third smallest owl species in Montana
These owls are fairly widespread across the northern US but seem to have very similar songs throughout. It is a high-pitched “toot” repeatedly with about 2 notes per second. Males doing territorial calls can be heard up to half a mile away.
Other males will respond to the territorial call with a quieter, faster, and lower-key version of the song. Females will also call back during courtship.
Their alarm calls will occasionally sound like a small siren going off. They can also do short squeaky calls repeatedly along with some high-pitched barks.