Observations are presented on 117 bird species seen in a 250-km2 area of northwestern Colorado adjacent to Utah and Wyoming. Three previously unreported species and seven status changes are listed for the Rangely, Colorado, latilong block.
Dunn, Peter O. and Ryder, Ronald A.
"Notes on the birds of Cold Spring Mountain, northwestern Colorado,"
Great Basin Naturalist: Vol. 46
, Article 8.
Available at: https://scholarsarchive.byu.edu/gbn/vol46/iss4/8