First appearing in 1934 and in continuous publication since then, Peterson's Field Guide to the Birds is the book that has inspired and instructed millions of birdwatchers. Twelve of Roger Tory Peterson's classic paintings of North American birds are featured in this distinctive calendar. Range maps and bird bios are also featured.
12 month calendar features 4 bonus months of September through December of 2012
Range maps and bird bios are also featured
Includes U.S. and international holidays, and moon phases