A winter feeding experiment on an island
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James N. M. Smith; Robert D. Montgomerie; Mary J. Taitt; Yoram Yom-Tov
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Article
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1980
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Springer-Verlag
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English
โ 819 KB
Supplemental food, in the form of millet seed, was provided to half of an island Song Sparrow population during the 1978-1979 winter to test if winter food influenced: (1) overwinter survival; (2) winter wights; (3) breeding density in 1979 and (4) 1979 breeding performance.Territorial males were mo