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Key terms: duck mallard birds auk drake hybridization ducklings populations anas platyrhynchos breeding doi pdf fulltext black duck relatives domestic duck conservation ecology resting indigenous mccracken rhymer extinction brood et al feral female mallard new zealand judith m ancestor dabbling mallard drake migratory fertile kevin g mallard duck britannica html abstract invasive reprints laysan duck greenland offspring gene flow subspecies pleistocene introgression pdf pdf fulltext american black duck indigenous waterfowl digital object identifier Search external links cited by footnotes on Wikipedia page Mallard: |
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