WebWe conclude that Bicknell’s Thrush and Gray-cheeked Thrush are 2 distinct species-level lineages despite low levels of Gray-cheeked Thrush introgression in Bicknell’s Thrushes, and divergence has been maintained by a long history of allopatry in subtly different habitats. Their unique phylogeography among boreal forest birds indicates that ... WebThe gray-cheeked thrush is about seven to seven and one-fourth inches long (tail tip to bill tip in preserved specimen). It has gray -brown feathers on the upper side of the body. Its cheek feathers are dark gray, and there is a gray eye ring. The breast feathers are mainly white with dark spots. BEHAVIORS
ML120244721 Gray-cheeked/Bicknell
WebGray-cheeked Thrush is the species most similar in appearance. The eyering on a Swainson's Thrush is typically buffy and more prominent than the whiter, weaker eyering of a Gray-cheeked Thrush. Gray-cheeked Thrushes also lack the buffy tones on the cheek and upper breast that are generally found on Swainson's Thrushes. WebOct 3, 2024 · Gray-cheeked Thrush, by comparison, has a much “colder” appearance. With a close look, it shows narrow lines of gray through the cheeks, in place of buff. Although the Gray-cheek lacks the obvious eye … thousand foot krutch shook
Bicknell
WebThe Gray-cheeked Thrush is one of the shyest and hardest-to-identify of the thrushes in the genus Catharus. This delicate thrush has a plain grayish face, spotted breast, grayish … WebWood Thrush and Veery tend to migrate early, and may be actively moving in late August. In September, Gray-cheeked and Swainson's thrushes overlap completely, but Gray-cheeked is less numerous and peaks a … WebIt doesn't have the thin eyering of Hermit Thrush and has a broad and dark cheek, so it's an interesting one from the Gray-cheeked complex. It has very traditional Bicknell's features but I haven't found any literature online that suggests the two can be safely identified without hearing the song. understanding credit powerpoint