The low densities of Blue Grouse (Dendragapus obscurus) now present on Haida Gwaii/Queen Charlotte Islands have been linked, by earlier research, to large scale clearcut harvesting and the impacts of introduced species. Ongoing work on the habitat and prey requirements of the threatened Northern Goshawk (Accipiter gentilis laingi) has identified the Blue Grouse as one of the goshawks main prey. Knowing the specific habitat attributes associated with the Blue Grouse, and ensuring these attributes are managed for, both in the remaining old growth and in the large areas of second growth forest, may be a critical element in ensuring that the goshawk population on the islands does not remain threatened. The objectives of this project were two fold. Both to establish the status of the grouse population, in comparison to the survey results in 2002, and to identify specific attributes associate with the location of the birds.
prepared by Frank Doyle.
Doyle, Frank I., Wildlife Dynamics. 2006. Blue grouse breeding habitat on Haida Gwaii. Forest Investment Account (FIA) - Forest Science Program. Forest Investment Account Report. FIA2006MR095