Comparative productivity of American black ducks and mallards nesting on Chesapeake Bay Islands
Canadian Journal of Zoology
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Abstract
The authors estimated laying dates, clutch sizes, and nest success rates of sympatrically breeding populations of American black ducks (Anas rubripes ) and mallards (Anas platyrhynchos ) on Chesapeake Bay islands between 1986 and 1989. Neither average laying date nor clutch size differed between black ducks and mallards. Nest success rates were higher for mallards in 2 of 4 years, but were area dependent.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Comparative productivity of American black ducks and mallards nesting on Chesapeake Bay Islands |
| Series title | Canadian Journal of Zoology |
| DOI | 10.1139/z92-035 |
| Volume | 70 |
| Issue | 2 |
| Year Published | 1992 |
| Language | English |
| Publisher | Canadian Science Publishing |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 4 p. |
| First page | 225 |
| Last page | 228 |