BLACK-THROATED THRUSH. 203 



and below, but after their autumn moult they are not unlike 

 the adult bird, but the head and rump are grey-brown 

 (Plate 83 second bird), and the under parts are more spotted. 

 Length, 10 ins. Wing, 575 ins. Tarsus. 1*4 ins. 



Dusky Thrush. Twdns f meatus Pallas. 

 The Dusky Thrush, though it breeds in Siberia and winters 

 in China, has not infrequently wandered into Europe, and it is 

 rather remarkable that it is only known to have once reached 

 Britain. It is hardly like the Fieldfare, though the exam.ple 

 shot in Nottinghamshire in 1905 was at first thought to be a 

 variety of this species. Its rump and secondaries are chestnut, 

 the throat white speckled with black, and the buff superciliary 

 stripe is conspicuous ; the most noticeable character is the 

 black on the breast, the feathers being margined with white. 

 The under wing-coverts and axillaries are rufous, further 

 distinguishing it from the Fieldfare. Length, 9 ins. Wing, 

 5'i5 ins. Tarsus, 1*35 ins. 



Black-throated Thrush. Turdus atrigularis Temm. 



The male of this western Siberian thrush, with its black 

 chin, throat and upper breast and otherwise white under parts, 

 cannot be confused with any British species, but the female 

 and young bird are a little like a very grey Song-Thrush, 

 having greyish brown upper parts and white under parts 

 streaked and spotted with black. In both sexes, however, 

 the crown is streaked, and in the female the throat and chin, 

 almost without marks in the Song-Thrush, are distmctly 

 speckled with black. Its usual winter quarters are in southern 

 Asia, but wanderers have occasionally reached England and 

 Scotland ; it has been recorded from Perthshire, Sussex and 

 Kent from December to March. Length, 9"5 ins. Wing, 

 5*45 ins. Tarsus, i"3 ins. 



