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In page Labrador duck:

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The Labrador duck migrated annually, wintering off the coasts of New Jersey and New England in the eastern United States, where it favored southern sandy coasts, sheltered bays, harbors, and inlets, and breeding in Labrador and northern Quebec in the summer.[1][2] John James Audubon's son reported seeing a nest belonging to the species in Labrador.[citation needed] Some believe that it may have laid its eggs on the islands in the Gulf of Saint Lawrence. The breeding biology of the Labrador duck is largely unknown.