Examination of over 1500 completed clutches of the Yellow Warbler (Dendroica petechia) between 1974 and 1987 revealed only four nests that received more than one egg/d and seven nests that contained ...

Journal of Avian Biology, Vol. 30, No. 2 (Jun., 1999), pp. 234-237 (4 pages) The proportion of extrapair paternity is known to vary greatly among species, but differences between populations of the ...

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This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...