67 



TTJEDUS RUFICOLLIS. 



(RED-THROATED THRUSH.) 



Turdus ruficollis, Pall. Eeise Russ. Reichs, iii. App. p. 694. no. 9 (1776). 

 Tardus erythrwus, Hodgs. in Gray's Zool. Misc. p. 83 (1844). 

 Planesticus ruficollis (Pall.), Bp. Cat. Parz. p. 5 (1856). 



Drost crasnosoboy, Russian. 



Figures notabiles. 

 Pall. Zoogr. Rosso-As. i. pi. 23 ; Naum. Vog. Deutschl. taf. 360. 



<J ad. pileo, nucha et corpore supra olivaceo-fuscis vix griseo tinctis : remigibus fuscis, extus anguste rufescenti- 

 cervino marginatis : rectricibus centralibus, et reliquis extus, fuscis, his in pogonio interne- et ad basin 

 ferrugineis : stria superciliari, regione suboculari, mento et gutture toto ferrugineis : corpore reliquo 

 subtus albo, hypochondriis vix griseo lavatis : subalaribus rufescenti-aurantiacis : rostro fusco-corneo, ad 

 basin pallidiore : pedibus paDide brunneis : iride fusca. 



<S juv. adulto similis, sed supr& magis olivaceo, nee gutture ferrugineo, sed gula rufescenti-cervino conspicue 

 nigro notato et gutture sordide ferrugineo et albo-cervino variegato. 



Adult Male (Moupin, 10th November) . Crown, nape, and entire upper parts olivaceous wood-brown with 

 a faint greyish tinge ; quills dark brown, externally narrowly edged with warm buff; central rectrices 

 and the upper surface of the closed tail dull dark brown ; but all the outer rectrices have the inner webs 

 ferruginous, so that the under surface of the tail is foxy red ; a streak over the eye, space below the eye, 

 chin, and entire throat to the upper breast rich fox-red, some of the feathers having narrow whitish 

 margins ; rest of the underparts white, the flanks washed with greyish j under wing-coverts rufous 

 orange ; beak dark horn-brown, lighter at the base ; legs light brown ; iris dark brown. Total length 

 about 10 inches, culmen - 8, wing 53, tail 4'1, tarsus 1*35. 



Young Male (Lake Baikal, 2nd of April). Resembles the male above described, but has the upper parts 

 more olivaceous, and the red throat is wanting ; the superciliary streak is warm buff, the upper throat 

 is rufous buff boldly marked with black ; and the lower throat and upper part of the breast are rufous 

 buff, the bases of the feathers being rufous and the margins buffy white, these latter almost concealing 

 the rufous bases ; rest of the underparts as in the adult ; under wing-coverts rusty orange, the 

 primaries without any rufous margin to the inner web; bill with more yellow at the base than in 

 the adult. 



Obs. Unfortunately I have been unable to collect a series of specimens of the present species for examina- 

 tion; but Mr. L. Taczanowski, referring to the specimens sent to him by Dr. Dybowski, says (J. f. O. 

 1872, p. 438) : — "This species shows great and numerous variations in coloration, which do not appear 

 to'depend either on age or season, as the most different varieties are found at the same time. The 

 differences are chiefly on the breast, which in some males is uniform rusty yellowish, entirely unspotted 

 or unmarked. In others, again, there are on each side of the throat distinct stripes, composed of small 



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