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Presents evidence that Harlequin duck broods accompany their mothers from breeding streams to coastal molting or wintering areas, according to a study conducted in southwestern Alberta. Importance of timing of brood abandonment; Number of Harlequin duck families observed at the wintering areas; Implications of the arrival of entire families at wintering areas to population genetic structure, demographics and conservation.

Presents information on a study that documented the frequency of pair reunions in Harlequin Ducks on breeding streams in Alberta and a molting/wintering area in southwestern British Columbia. Methodology; Results and discussion; Why males should attempt to reunite with their previous mates.