1-10 of 10 Books

A sound like water dripping
By Soren Bondrup-Nielsen
Ecology of boreal owls in the Northern Rocky Mountains, U.S.A
Ecology of boreal owls in the Northern Rocky Mountains, U.S.A
By Gregory D. Hayward

Status report on boreal owl surveys in southwestern Montana, 1989
By Patrick D. Mullen
Physical factors in directional hearing in Aegolius funereus (Linné) (Strigiformes)
Physical factors in directional hearing in Aegolius funereus (Linné) (Strigiformes)
By Åke Norberg

Flammulated, boreal, and great gray owls in the United States
By Gregory D. Hayward

Results of boreal owl (Aegolius funereus) surveys on the Jefferson Division of the Lewis & Clark National Forest
By John C. Carlson

Boreal owl (Aegolius funereus) and flammulated owl (Otus flammeolus) survey results for the Livingston District of the Gallatin National Forest
By Monica Brelsford
Der Rauhfusskauz (Aegolius funereus)
Der Rauhfusskauz (Aegolius funereus)
By Robert März