Behav. Ecol. Sociobiol. 55(4)

[Jerome SUEUR <>]

<tt>Published in Behav. Ecol. Sociobiol. 55(4), Feb. 2004</tt><br>
 <br>
 <tt>Peter J. Christie, Daniel J. Mennill, Laurene M. Ratcliffe 2004. Pitch 
 shifts and song structure indicate male quality in the dawn chorus of 
 black-capped chickadees. Behav. Ecol. Sociobiol, 55(4): 341-348</tt><br>
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