THE GRAY-CHEEKED THRUSH AND BICKNELL’S THRUSHES
Gray-Cheeked Thrush: “The Gray-cheeked Thrush is found in migration over all the Eastern States, but breeds farther north, beyond our limits.
Bicknell’s Thrush: “Bicknell’s Thrush, a closely related form, while having somewhat the same general range, breeds farther south and nests in the mountains of northern New York and New England. The species does not seem to be very abundant anywhere.”[158]
Their resemblance to each other and to the olive-back makes them difficult to identify. The absence of buff from the head differentiates them from the latter species, which is a difference not readily observed except by experienced ornithologists. Bicknell’s thrush is smaller than the gray-cheeked thrush.