Nongame Wildlife Program

Nongame wildlife specialists


Boreal owl population monitoring

Boreal owl

This small, flat-headed, earless owl is found only in the extreme northeastern portion of Minnesota and considered at the edge of its range. The boreal owl (Aegolius funereus) population is monitored in late winter on predetermined routes during the evening hours. Researchers stop every mile to listen for the owl's unique call, which is similar to the sound of a soft high-pitched bell.