A concise, comprehensive overview of the penguins, their evolution, ecology and behavior. With line drawings, figures, charts and black-and-white photographs. A volume in a series of monographs on birds published by T & AD Poyser in Britain. Spencer, who has done field work on Erect-crested, Yellow-eyed and other New Zealand penguins is a professor at the University of Otago in Dunedin.  (ANT207, $45.00)