The following bird list contains 192 species, plus 27 accidental species that have been recorded since the refuge was established. It is not considered final as observations by many people continue to add to the quality and accuracy of the list. We encourage and appreciate these observations and ask that they be reported as soon as possible to the Lakeview or Dufurrena offices. A few abbreviations have been used pertaining to the birds found on Sheldon to assist the observer in determining status and seasonal abundance. American Ornithologists' Union Checklist of North American Birds as amended.
Species is present the entire year, usually nests in the area.
Migratory species which usually nests in the area. Migratory species which winters in the area. Irregular species or vagrants occurring sporadically and usually in small numbers. Accidental Species - Recorded only once or twice on the refuge and in very few numbers. Contributions of confirmed sightings are welcome.