Fish and Wildlife Technical Report 



This publication series of the Fish and Wildlife Service comprises reports of investigations related to fish or wildlife. 

 Each is published as a separate paper, but for economy several may be issued in a single cover. The Service distributes a 

 limited number of these reports for the use of Federal and State agencies and cooperators. See inside back cover for a list 

 of recent issues. 



Copies of this publication may be obtained from the Publications Unit, U.S. Fish and Wildlife Service, 1 849 

 C Street, N.W., Mail Stop 130 ARLSQ, Washington, DC 20240, or may be purchased from the National 

 Technical Information Service (NTIS), 5285 Port Royal Road, Springfield, VA 22161. 



From the collection of 



International 



Bird Rescue 



Research Center 



Cordelia, California 



in association with 



7 n 

 z m 



o Prejinger 

 v Juibrary 

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San Francisco, California 

 2006 



ISSN 0899-3505 



