By Donald Kroodsma
Houghton Mifflin $16.95 US, $22.95 CDN
Birdsong, welcome music as spring arrives, is a wondrously diverse method of vocal communication. The author, a leading expert in “avian vocal behavior,” explains how and why birds sing and how we can better understand them through their songs. The book contains a with recordings of bird songs that , when matched with graphic sonograms in the book, allows the reader to hear birds sing as never before.