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1 December 2001 Mother-Son Pair Formation in Common Loons
Walter H. Piper, Keren B. Tischler, Amy Dolsen
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Abstract

Reproduction among close relatives is rare in birds. Here we report two cases of pair formation between mothers and sons in a marked population of Common Loons (Gavia immer) in northern Wisconsin, one of which resulted in the fledging of a chick. Short distance natal dispersal by males coupled with short distance breeding dispersal by adults after territorial displacement sets the stage for occasional mother-son pairings in this species, although data from multilocus DNA fingerprints indicate that such pairings are infrequent.

Walter H. Piper, Keren B. Tischler, and Amy Dolsen "Mother-Son Pair Formation in Common Loons," The Wilson Bulletin 113(4), 438-441, (1 December 2001). https://doi.org/10.1676/0043-5643(2001)113[0438:MSPFIC]2.0.CO;2
Received: 28 March 2001; Accepted: 1 November 2001; Published: 1 December 2001
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