Birding is the fastest-growing outdoor pursuit in America. This landmark volume, Oklahoma’s first breeding bird atlas, offers both amateurs and ornithologists

Beautifully illustrated with color photographs, maps, graphs, and tables, the Oklahoma Winter Bird Atlas offers ornithologists and amateur birders alike a wealt

It is of practical interest to know the amount of data required to produce reliable models. I developed nine training sets of from 50 to 450 sites for each spec

Examines over 270 species of birds known to breed in Arizona, complete with color photos and nesting and migratory data.