Physical characteristics of Blue Grouse winter use-trees and roost sites

Authors

Peter J. Pekins, Utah Cooperative Fish and Wildlife Research Unit, Utah State University, Logan, Utah
Frederick G. Lindzey, Wyoming Cooperative Research Unit, Laramie, Wyoming
James A. Gessaman, Department of Biology and Ecology Center, Utah State University

Abstract

Physical characteristics of winter use-trees and roost sites of Blue Grouse (Dendragapus obscurus) were studied in northeastern Utah. Blue Grouse selectively roosted in the largest Douglas-fir (Pseudotsuga menziesii) trees during the day and subalpine fir (Abies lasiocarpa) trees at night. Diurnal and nocturnal roosts were typically adjacent to tree trunks in the lower two-thirds of trees. Nocturnal roosts provided greater canopy and denser shelter than diurnal roosts. Roost site selection was consistent with occupation of favorable microhabitat, particularly at night, and foraging strategy during the day. Timber management strategies should perpetuate large trees within Douglas-fir–subalpine fir habitat in areas occupied by wintering Blue Grouse.

Recommended Citation

Pekins, Peter J.; Lindzey, Frederick G.; and Gessaman, James A. (1991) "Physical characteristics of Blue Grouse winter use-trees and roost sites," Great Basin Naturalist: Vol. 51: No. 3, Article 6.
Available at: https://scholarsarchive.byu.edu/gbn/vol51/iss3/6