- Allan, Thomas A.
University of Maine Graduate School
In this study I examine seasonal changes in the habitats used by spruce grouse in eastern Maine and attempt to describe how these patterns are associated with changing requisites in the bird's annual cycle. Habitat use of spruce grouse (Dendragapus canadensis) was studied in eastern Maine from the spring of 1981 until autumn of 1983. Seasonal changes in habitat use and spatial relationships were determined from 774 observations of 89 different grouse. Thirty eight grouse were fitted with back-mounted radio transmitters and monitored for an average of 69 days.