David Allen Sibley
From Amazon
The Sibley Field Guide to Birds of Eastern North America: Second Edition (Sibley Guides) The Sibley Field Guide to Birds of Eastern North America: Second Edition (Sibley Guides) – The Sibley Guide to Birds has quickly become the new standard of excellence in bird identification guides, covering more than 810 North American birds in amazing... View on Amazon
Sibley Birds West: Field Guide to Birds of Western North America – Random House Sibley Birds West White Onesize. View on Amazon
The Sibley Guide to Bird Life & Behavior – Used Book in Good Condition. View on Amazon
From Amazon
Sibley's Birding Basics: How to Identify Birds, Using the Clues in Feathers, Habitats, Behaviors, and Sounds (Sibley Guides) Sibley's Birding Basics: How to Identify Birds, Using the Clues in Feathers, Habitats, Behaviors, and Sounds (Sibley Guides) – From the renowned author of the New York Times best seller The Sibley Guide to Birds, a comprehensive, beautifully illustrated guide to identifying birds in the field--an essential... View on Amazon
Sibley: The Birder's Year 2009 Weekly Engagement Planner (Calendar) – Used Book in Good Condition. View on Amazon
The Sibley Guide to Birds, 2nd Edition (Sibley Guides) – Sibley Guide To Birds, 2nd Ed. View on Amazon
