Distribution of American black duck and mallard in northern Ontario / R.K. Ross and D. Fillman.: CW69-9/189E-PDF
"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.
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| Department/Agency | Canada. Environment Canada. Canadian Wildlife Service. |
|---|---|
| Title | Distribution of American black duck and mallard in northern Ontario / R.K. Ross and D. Fillman. |
| Series title | Progress notes ; no. 189 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Other language editions | [French] |
| Format | Electronic |
| Electronic document | |
| Note(s) | 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. |
| Publishing information | [Ottawa] : Canadian Wildlife Service, 1990. |
| Author / Contributor | Ross, Richard Kenyon. Fillman, D. |
| Description | 5 p. : figs. |
| Catalogue number |
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| Subject terms | Aquatic birds Population distribution Ducks Mallards |
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