Crossley ID Guide (Eastern Birds) The Crossley ID Guide: Eastern Birds Richard Crossley Princeton University Press Cloth Flexibound 544 pages 2011 I have to admit that I was initially pretty skeptical about the huge hype surrounding Richard Crossley’s new field guide The Crossley ID Guide: Eastern Birds. It’s been described as “mind-blowing,” “revolutionary,” and “unconventional,” among countless other superlatives. What …