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THE WILSON JOURNAL OF ORNITHOLOGY • Vol. 124, No. 3. September 2012 
Clipperton in 2005. along with radiographs of all 
three specimens, are housed at the San Diego 
Museum of Natural History (SDNMH 51044. 
51046. and 51045, respectively). 
ACKNOWLEDGMENTS 
We gratefully acknowledge J.-L. Etienne for organizing 
the 2005 Clipperton scientific expedition and supporting 
our participation. A. E. Henry. D. J. Anderson (and 
students), and an anonymous referee provided useful 
comments on an earlier draft of this paper. 
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