Whales, Dolphins, and Porpoises of North America

The ultimate illustrated field guide for watching whales, dolphins, and porpoises in North America—practical, portable, comprehensive, and up to date This outstanding field guide covers all 54 species and every subspecies of whale, dolphin, and porpoise that occur off the coasts of North America. It is packed with more than 450 illustrations featuring detailed annotations pointing out important field marks. It also features up-to-date distribution maps and concise text that includes helpful iden