 Are We Smart Enough to Know How Smart Animals Are? by Frans de Waal |  The Parrot's Lament by Eugene Linden |  Beyond Words by Carl Safina |  Second Nature by Jonathan Balcombe |  If a Lion Could Talk by Stephen Budiansky |  When Elephants Weep by Jeffrey Moussaieff Masson |  Next of Kin by Roger Fouts |  The Animal Mind by James L. Gould |  The Warbler Guide by Tom Stephenson |  Where the Animals Go by James Cheshire |  Life on Earth by David Attenborough |  National Geographic Field Guide to the Birds of North America by National Geographic Society |  The Wisdom of Wolves by Jim Dutcher |  Honeybee Democracy by Thomas D. Seeley |  A Sting in the Tale by Dave Goulson |  Meadowland by John Lewis-Stempel |  The Moral Lives of Animals by Dale Peterson |  Ravens in Winter by Bernd Heinrich |  The Thing with Feathers by Noah Strycker |  The Ghost with Trembling Wings by Scott Weidensaul |