00000nam 2200000za 4500 9.856236 CaOODSP 20241203113642 cr ||||||||||| 180507s1988 bccb ob f000 0 eng d 0662162048 0831-6481 CaOODSP eng eng fre n-cn-bc CW69-5/43E-PDF CW69-5/43E Rodway, Michael S. British Columbia seabird colony inventory. Report #3, Census of glaucous-winged gulls, pelagic cormorants, black oystercatchers and pigeon guillemots in the Queen Charlotte Islands, 1986 [electronic resource] / Michael S. Rodway. Census of glaucous-winged gulls, pelagic cormorants, black oystercatchers and pigeon guillemots in the Queen Charlotte Islands, 1986 Delta, B.C. : Canadian Wildlife Service, Pacific and Yukon Region, 1988. iii, 95 p. : maps. Technical report series ; no. 43 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "Nesting sites of Glaucous-winged Gulls (Larus glaucescens), Pelagic Cormorants (Phalacrocorax pelagicus) and Black Oystercatchers (Haematopus bachmani) in the Queen Charlotte Islands were censused between 7 May and 11 July 1986. Nesting populations were compared to 1977 figures. Populations of Glaucous-winged Gulls and Black Oystercatchers were larger in 1986 than in 1977, but Pelagic Cormorant numbers had declined. Counts of Pigeon Guillemots (Cepphus calumba) in attendance around gull colonies were made"--Abstract, p. i. Issued also in print format. Includes abstract in French. Sea bird populations Bird surveys Haida Gwaii (B.C.) Canada. Environment Canada. Canadian Wildlife Service. Pacific and Yukon Region. Technical report series (Canadian Wildlife Service) no. 43. (CaOODSP)9.504438 PDF 6.43 MB https://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-43-eng.pdf