Sibley Birding: How Much Does Your Big Day Weigh? Or Birding with a Calculator

Authors
Bob Bushnell, Steve Davis
Journal
Bird Observer
Volume
30
Issue
1
Year
2002
Pages
39-40
File attachments
BirdObserver30.1_Page39-40_Sibley Birding - How Much Does Your Big Day Weigh Or Birding with a Calculator_Bob Bushnell, Steve Davis.pdf (315.03 KB)

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