310 BRITISH BIRDS. 
wing-coverts and innermost secondaries broadly edged with buff, the quills 
narrowly tipped with buff, and the tail-feathers narrowly tipped with 
white. Young in first plumage resemble the female of the year, but have 
obscure pale centres and dark terminal bars to the feathers of the throat, 
breast, crown, and back. 
The Western form of the Black-throated Chat differs in having the 
black on the throat not extending beyond the upper throat; it is also 
more constantly suffused with buff on the back and breast. Intermediate 
forms also occur; and examples from Spain, in which the black on the 
throat is more extended than usual, are indistinguishable from examples 
from Asia Minor, in which the black on the throat is less extended than — 
usual, There is no difference in size. 
A nearly allied, but distinct species, the Euphrates Pied Chat (S. finschit), 
has the upper breast as well as the throat black. This species breeds in 
the rocky hills of the Caucasus, Eastern Asia Minor, and Persia. It passes 
through Egypt on migration, and is found in Nubia in winter. 
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