The American Black Duck largely occurs instead of the Mallard in much of the eastern part of the continent. It no longer breeds regularly in Alberta, having been replaced by the Mallard.
In the Calgary area, it is only occasionally seen as a vagrant. It is a rare day indeed if one is found in Weaselhead.
The diet of the Black Duck, like the Mallard, consists of Aquatic plants, insect larvae and frogs eggs. They go out to feed in grainfields where they occur.
Where it breeds, the Black Duck's nest is built of vegetable matter. It is well hidden like the Mallard's
Notes for the Swans, Geese and Ducks section: Seasonal distributions have been checked against the range maps in A Field Guide to the Birds of North America by the National Geographic Society. Migration periods have been checked against the occurrence chart in A Birdfinding Guide to the Calgary Region by the Calgary Field Naturalists Society. Diet and Nesting information have largely been obtained from Birds of Alberta by Fisher and Acorn and the earlier Birds of Alberta by Salt and Salt.
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Where to find American Black Ducks in Alberta
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