Black-throated Thrush Turdus atrogularis

Black-throated Thrush
Black-throated Thrush male breeding plumage
Black-throated Thrush male winter plumage
The summer breeding range of the Black-throated Thrush (male above in breeding plumage) is from far Eastern Europe to West Siberia and Mongolia.
Black-throated Thrush
Black-throated Thrush
Black-throated Thrush
It migrates south for the winter. Photos on this page were taken in Kazakhstan by Alexandra Makhnina.
Black-throated Thrush female Black-throated Thrush, female, above
Hybrid Black-throated and Red-throated Thrush Hybrid Black-throated and Red-throated Thrush
The Black-throated Thrush used to be considered the same species as the Red-throated Thrush, Turdus ruficollis, which overlaps the range to the east, and together they were called the Dark-throated Thrush. Above is said to be a hybrid Turdus atrogularis x ruficollis http://birds.kz/bkphoto.php?l=en&s=023100034&n=1