00000nam 2200000za 4500 9.857273 CaOODSP 20241203113643 cr ||||||||||| 180601s1991 bccbd o f00| 0 eng d CaOODSP eng n-cn-bc CW69-5/154E-PDF Butler, Robert William. A review of the biology and conservation of the great blue heron (Ardea herodias) in British Columbia [electronic resource] / Robert W. Butler. Delta, B.C. : Canadian Wildlife Service, Pacific and Yukon Region, 1991. 16 p. : map, chart. Technical report series ; no. 154 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (p. 13-16). "The Great Blue Heron (Ardea herodias) breeds from southern Canada to Central America and on the Galapagos Islands (Butler 1992). In British Columbia these herons breed along the entire coast and in southern interior valleys at least as far north as 52°N"--Introd. gccst Aquatic birds gccst Population gccst Nature conservation Great blue heron Canada. Environment Canada. Canadian Wildlife Service. Pacific and Yukon Region. Technical report series (Canadian Wildlife Service) no. 154. (CaOODSP)9.504438 PDF 879 KB https://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-154-eng.pdf