This list originated from a vertebrate species checklist compiled by Art McKee, Ron Nussbaum, and Chris Maser in 1976. The list was augmented in 1989 by David Fortna and Art McKee, and was revised in 1993 with updated species information by Biologists of the Oregon Cooperative Wildlife Research Unit and Blue River Ranger District. It represents the collective observations of many people over 20- plus years, but should not be viewed as either current or complete.
Nomenclature for common names follow the 1987 edition of the National Geographic Society's field guide, "Birds of North America". Species codes used are those of the American Ornithologist's Union. The USFWS Checklist OF Vertebrates, 1991, was used to quantify scientific names from the common names.