Barnegat Lighthouse State Park Long Beach Island, New Jersey
Harlequin Ducks breeding in eastern Canada and Greenland winter primarily along the coast of Atlantic Canada and New England. Many males form small, loose flocks and leave their breeding grounds by late June. Females begin to return to the coast with young birds from July into September. Males stop over in molting sites, where large numbers congregate during this brief period of flightlessness. They often arrive on their wintering grounds in late October. Wintering birds begin leaving for their breeding grounds in late March.
Barnegat Lighthouse State Park on the northern tip of Long Beach Island is one the most popular winter wildlife viewing spots in the Mid-Atlantic. Birdwatchers come from many miles to admire the Harlequin Ducks, Purple Sandpipers, Eiders, Scoters, and Mergansers.