The Birds of British Columbia, Volume 4 completes one of the most important regional ornithological works in North America. It covers the last half of the passerines and contains 102 species, including the little-known and elusive warblers, sparrows, grosbeaks, blackbirds, and finches. The text builds upon the authoritative format of the previous volumes and is supported by hundreds of full-color illustrations, including detailed distribution maps, unique habitat shots, and beautiful photographs of the birds, their nests, eggs, and young. A final Synopsis looks at data from all four volumes, synthesizing information and searching for patterns that will add to our understanding of bird populations and behavior in the future.The four volumes of The Birds of British Columbia provide unprecedented coverage of the region's birds, presenting a wealth of information on the ornithological history, regional environment, habitat, breeding habits, migratory movements, seasonality, and distribution patterns of 472 species of birds. It is the complete reference work for birdwatchers, ornithologists, and naturalists.