494 Mr. H. L. Popliam on Birds 



G. "^TURDUS ATRIGULARIS. 



Like the preceding species, the Black-throated Thrush 

 appears to frequent the pine-forest only; and neither of 

 them seems to be very gregarious in breeding-habits, for 

 although several pairs were nesting in the same locality, 

 they were not by any means in colonies, like the Field- 

 fares. I obtained my first specimen at Yeniseisk, but did 

 not meet with this Thrush again till we came to Inbatskaya, 

 where I took five nests, each containing six eggs, which 

 vary considerably. Two clutches have the markings of the 

 Mistle-Thrush, but the ground-colour is a deeper blue; other 

 clutches are very much of the type of the Blackbird, and in 

 one of these latter a single egg has the markings of the 

 Mistle-Thrush type. 



The nests, composed of dry grass with a lining of mud 

 and an inner lining of broad dry grass, were all placed 

 in small fir-trees close to the stem (except one, which was 

 on the top of a stump) at heights varying between 3 feet and 

 6 feet. In all cases both the parent birds flew uneasily from 

 tree to tree round the nest, constantly uttering their alarm- 

 note, " chit, chit, cheet." When singing, the male whistles 

 a few notes at a time, somewhat like a Song-Thrush, with 

 considerable variation, but does not repeat the same phrase 

 two or three times over as the latter does. The Black- 

 throated Thrush appears to be extremely local in the valley 

 of the Yenisei. The eggs measure from 1"08 in. to 1'15 in. 

 long by from '17 in. to '84 in. broad. 



7. *TURDUS SIBIRICUS. 



In 1895 I was unable to thoroughly identify eggs of the 

 Siberian Thrush, but in 1897 I was determined, if possible, 

 to do so, and spent many hours watching supposed nests 

 before I succeeded in shooting a bird from its nest and 

 watching others sitting on their nests. I eventually took 

 18 eggs out of six nests (the greatest number in one nest 

 being four) and shot two specimens of the female bird and 

 four males. The neighbourhood of Toorukhansk appears to 

 be their headquarters. The eggs, which place the identity of 



