We documented the frequency of pair reunion in Harlequin Ducks (Histrionicus histrionicus) on breeding streams in Alberta, and at a molting/wintering area in southwestern British Columbia. As long as their mate is alive, Harlequin Duck pairs reunite on the wintering area and return to the breeding stream together. Pairs reunite even if the female is unsuccessful at breeding the previous season, which suggests that reuniting with the same mate year after year is important. Some males that have lost their mate and fail to re-pair on the wintering area show fidelity to their former breeding site.
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1 February 2000
LONG-TERM PAIR BONDS IN HARLEQUIN DUCKS
Cyndi M. Smith,
Fred Cooke,
Gregory J. Robertson,
R. Ian Goudie,
W. Sean Boyd
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The Condor
Vol. 102 • No. 1
February 2000
Vol. 102 • No. 1
February 2000
breeding site fidelity
Harlequin Duck
Histrionicus histrionicus
mate fidelity
pair reunion