170 PARUS 



Hal. Siberia, ranging west to the Petchora river. 



In general habits it does not differ from P. borealis, but its 

 nest is said to resemble that of P. palustris. It nests in holes 

 of trees, and either makes use of a suitable hole or bores one 

 for itself. It breeds in May, and its eggs do not differ from 

 those of its congeners. 



246. SUBSP. PARUS CAMTSCHATKENSIS. 



Parus camtschatkemis (Bp.) Consp. Gen. Av. i. p. 230 (1850) ; Gadow, 

 Cat. B. Br. Mus. viii. p. 51 ; (Tacz.) F. 0. Sib. 0. p. 442. 



Ad. (Kamchatka). Differs from P. baicalensis in having the black on 

 the nape extending rather farther on the back, which is white tinged with 

 sandy grey ; upper tail-coverts pure white ; wings and tail rather broadly 

 margined with white ; under parts, below the throat and flanks, pure 

 white. Culmen 0'4, wing 2'45, tail 2'23, tarsus 0'73 inch. 



Hob. Kamchatka. 



Does not differ in habits from P. baicalensis, of which it is a 

 paler, northern form. I do not find any description of its nest 

 and eggs. 



247. SONGARAN MARSH TITMOUSE. 

 PARUS SONGARUS. 



Parus songarus, Severtz. Turk. Jevot. p. 134 (1873) ; Gadow, Cat. B. Br. 



Mus. viii. p. 48 (part.) ; Pleske, Prjevalsky's Reisen, Vogel, ii. p.157, 



Taf. viii. fig. 1. 



Ad. (Turkestan). Crown and nape black ; upper parts generally pale 

 sandy or buffy brown ; wings and tail brown, with narrow pale margins ; 

 lores, cheeks, and ear-coverts white ; chin'and throat black, the feathers nar- 

 rowly tipped with white ; rest of the under parts pale whitish isabelline, the 

 sides of breast flanks and under tail-coverts washed with warm ochraceous ; 

 bill blackish ; legs plumbeous ; iris dark brown. Culmen 0'55, wing 2 '7,, 

 tail 2-38, tarsus 0'75 inch. 



Hob. Turkestan, east to the Sairam-nor and Issyk-kul. 



Frequents the conifer woods, and in general habits does not 

 differ from the other Marsh Titmice. 



248. MONGOLIAN MARSH TITMOUSE. 

 PARUS AFFINIS. 



Parus affinis (Prjev.), Mongol, i Strana Tangut, ii. p. 52 (1876) ; Berez. 

 and Bianchi, Ptitz Gan-su, p. Ill ; Pleske, Prjevalsky's Reisen, ii. 

 Vogel, p. 158, Taf. viii. fig. 2. 



