20 Nicholson, Palcearctic Species of Coal- Tits. 



It is found in the Tschorock District of the Caucasus. 



Dr. Hartert says that it has a much longer bill than 

 P. moltchanowi, and differs from that species, in that the 

 back is not so pure ashy-grey, but is plainly olivaceous in 

 tint, as in P. britanniciis, while the sides of the body and 

 the under tail-coverts are not so whitish, but clearly 

 tinged with reddish-brown colour. 



From P. viicJialowskii it differs in the much more 

 slender bill and the colouring of the upper surface, which 

 appears more greyish. 



Parus michalowskii. 



Parus michalowskii^ Bogd., Tr. Soc. Kazan Univ., vol. 8, no. 4, 



p. 87 (1879). 

 Parus ater michalowskii, Prazak, MT. Orn. Ver. IVien, vol. 18, 



p. 143 (1894); Hartert, "Vog. Pal. Fauna," part 3, p. 360 



(1905). 

 Parus {Peripariii) ater michaloivskii, Hellmayr, "Tierreich, Pari- 



dae," p. 78. 

 Periparus michalowskii, Bianchi, i.e., p. 244 ; Sharpe, " Handl. 



B.," vol. 4, p. 325 (1903). 



This is one of the brown-backed section of Coal-Tits, 

 and is very closely allied to P. pJiaeonotus, Blanford, with 

 which Mr. Dresser has united it. 



Mr. Hellmayr gives the characters as follows : — Very 

 similar to P. britannicus, but with a somewhat brownish 

 tone on the back ; the rump without any olive-grey tint. 

 The under surface, however is much lighter, and with much 

 less of a bright wash on the sides. Bill decidedly stouter 

 than in the allied forms, P. ater and P. phaeonotus. 



The habitat is stated by Dr. Hartert to be the 

 Southern Caucasus, in the river system of the Kura, 

 Sekarsk to Kedabeg- and Lenkoran. 



