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Pitch Shifts and Song Structure Indicate Male Quality in the Dawn Chorus of Black-Capped Chickadees
Peter J. Christie, Daniel J. Mennill and Laurene M. RatcliffeVolume:
55
Journal:
Behavioral Ecology and Sociobiology
DOI:
10.2307/25063366
Date:
February, 2004
File:
PDF, 6.45 MB
2004