WebThe Sibley Guide to Trees. David Allen Sibley, the preeminent bird-guide author and illustrator, now applies his formidable skills of identification and illustration to the trees of … WebThe Sibley Field Guide to Birds of Western North America, written and illustrated by David Allen Sibley. Alfred A. Knopf. A compact, geographically-specific version of the Sibley …

The Sibley Guide to Bird Life & Behavior - Goodreads

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