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Published online 22 November 2000 | Nature | doi:10.1038/news001123-6
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Monagamous males play away from home
Valerie Depraetere finds out why some birds go AWOL. .
Lonely looking birds may just be searching for a fling away from their partners. Nominally monogamous male swallows may masquerade as bachelors if they are fit enough for sex, but not fit enough to invest in family care, Bart Kempenaers at the Research Centre For Ornithology in Stanberg, Germany, and colleagues have found.
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