Atlas of Bird Migration: Tracing the Great Journeys of the World's Birds.

One of the hallmarks of the change from summer to winter is the north-south migration of birds, as billions of them leave their remote, northern breeding grounds for warmer locales. But these journeys are only a partial picture of bird migration worldwide. Elphick, with the help of other bird observers, uses vivid images, maps, and computer re-creations to document the migration patterns of winged voyagers everywhere. Migration evolved as continents and glaciers shifted, altering the landscape and changing the ancestral environments of birds across the globe, the authors assert. The writers shed light on this process and then turn to details of modern migrations. The authors show the migration patterns of North American and Eurasian birds, birds from the far Northern and Southern Hemisphere, and migratory sea birds. Firefly, 2007, 176 p., color images, hardcover, $35.00.