The profiles of about 600 species are complete. Additional profiles are being added.
The basic bird profiles were primarily written by Dan Reinking. Dan works for the George Miksch Sutton Avian Research Center and is past president of the Oklahoma Ornithological Society.
Some profiles were written and/or edited by Sam Crowe.
The Bent Life History series was originally published by the Smithsonian, from the 1920s until the 1950s.