Date of this Version
This volume culminates the typical five-year atlas study of breeding birds in a specific state, in this case one well within the Great Plains. Oklahoma abuts parts of five other states of that region and, as such, shares its avifauna with them. The obviously well-funded effort included a full-time seasonal employee each year to survey blocks and enter data, each one racking up an impressive 10,000 miles per season to reach blocks not covered by volunteers. Nonetheless, like most of those before it, this atlas project had to rely upon volunteers to accomplish much of the field work.