Extraordinary Size and Survival of American Black Duck, Anas rubripes, Broods
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Published:2004-01-01
Issue:1
Volume:118
Page:129
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ISSN:0008-3550
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Container-title:The Canadian Field-Naturalist
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language:
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Short-container-title:Can Field Nat
Author:
Longcore Jerry R.,McAuley Daniel G.
Abstract
Two female American Black Ducks (Anas rubripes) were initially observed during June 1982 with 20 Class Ib or 18-22 Class Ia-b ducklings in two wetlands in Hancock County, Cherryfield, Maine. Fifteen of 20 ducklings (75%) in one brood and 16 of 18-22 ducklings (72-89%) in the other brood survived to fledge. These large broods probably resulted from post-hatch brood amalgamation.
Publisher
Ottawa Field-Naturalists' Club
Subject
Ecology, Evolution, Behavior and Systematics