The Hermit Thrush resides in forests where it is more often heard than seen. It most similar to other thrushes but can be told from them by its rusty rump and tail contrasting with the duller back and wings. Gray-cheeked and Bicknell's Thrushes lack white eye rings and have gray cheeks. Veeries have less spotting on the breast. Swainson's Thrushes have buffy spectacles. Wood Thrushes have larger, and more extensive spotting on the underparts. In the eastern United States, Fox Sparrows are somewhat similar but have conical bills and streaked backs.
Length and wingspan from: Robbins, C.S., Bruun, B., Zim, H.S., (1966). Birds of North America. New York: Western Publishing Company, Inc.