00000nam 2200000za 4500 9.850304 CaOODSP 20241203113641 cr ||||||||||| 180118s1990 onca||||o f000 0 eng d CaOODSP eng n-cn-on CW69-9/189E-PDF Ross, Richard Kenyon. Distribution of American black duck and mallard in northern Ontario [electronic resource] / R.K. Ross and D. Fillman. [Ottawa] : Canadian Wildlife Service, 1990. 5 p. : figs. Progress notes ; no. 189 Issued also in French under title: Répartition géographique du canard noir et du canard colvert dans le nord de l'Ontario. "April 1990." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "The province of Ontario contains the major zone of range overlap for the Mallard Anas platyrhynchos and the closely related American Black Duck A. rubripes. Both of these very important game species have, in recent years, undergone declines in numbers that are of considerable concern (Canadian Wildlife Service/U .S. Fish and Wildlife Service 1986)"--Introd. gccst Aquatic birds gccst Population distribution Ducks Mallards Fillman, D. Canada. Environment Canada. Canadian Wildlife Service. Répartition géographique du canard noir et du canard colvert dans le nord de l'Ontario (CaOODSP)9.860801 Progress notes (Canadian Wildlife Service) no. 189 (CaOODSP)9.504439 PDF 408 KB https://publications.gc.ca/collections/collection_2018/eccc/CW69-9-189-eng.pdf