The vocal ecology of Aegolis owls.

I monitored the vocal ecology of several territorial male Boreal Owls in sub-alpine habitats in southwest Colorado using automated listening stations. I collected over 7000 hours of data and recorded Boreal Owl vocalizations as of yet not described. I also documented the first displacement of a Boreal Owl from its nesting cavity by the smaller and closely related Northern Saw-Whet Owl. Results from this data have also been used to optimize monitoring protocols for small owls by government agencies and ngo's in southwest Colorado.