The Sibley Guide to Birds, Second Edition: A Review of an Iconic Guide in a New Edition
10,000 Birds
APRIL 1, 2014
Birds are arranged in taxonomic order, organized into sections based on families. In some cases, families that were separate in Sibley One are grouped together in Sibley Two (Mockingbirds, Thrashers, Starlings, Accentors, Wagtails, and Pipits–yes, that is one section). These have been dropped in Sibley Two.
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