Remsen, J.V. 1975 Gray-cheeked Thrush Catharus minimus May 11 Bonny Dam, Yuma Co., Colo.: I seen at close range (30') for about a minute along the south edge of Bonny Dam in a dense willow- cottonwood thicket with swampy ground. My attention was drawn to this individual because of its darker coloration than the Swanson's Thrushes in the same thicket. With the binoculars on the bird, I could see that there was no trace of any eyering or buffy area above the eye and that the cheek was solid gray - no buffy; the malar stripe was very conspicuous; the throat was white; breast whitish spotted black - no buffy on sides of breast or throat like Swanson's; upperparts were a uniform brownish-gray with no contrast between back, rump, and tail and no [illegible] warm-brown tones like most Swanson's Thrushes.