PHYLLOSCOPUS 105 



152. PALLAS' WILLOW- WARBLER. 

 PHYLLOSCOPUS PROREGULUS. 



Phylloscopus proregulus (Pall.) Zoogr. Ross. As. i. p. 499 (1811); Hume 

 and Henderson, Lahore to Yark. p. 220 ; Tacz. J.t'.O. 1873, Taf. i. 

 fig. 10 (eggs) ; Dresser, ix. p. 73, pi. 650, fig. 1 ; Saunders, p. 63; 

 Lilford, iii, p. 72, pi. 36 ; Seebolim, Cat. B. Br. Mus. v. p. 71 ; 

 (Gates), F. Brit. Jnd. Birds, i. p. 408 ; P. modestus, (Gould), B. of E. 

 ii. pi. 149 ; Ph. chloronotus, (Hodgs.) MS. Drawings of B. of 

 Nepal, Passeres. pi. 57, fig. 5. 



<J ad. (Siberia). Upper parts olive-green, the head darker ; rump 

 yellow ; under parts white, washed with grey on the flanks ; mesial and 

 superciliary stripes sulphur-yellow, well defined ; wings crossed by two 

 distinct yellowish white bands ; bill brown, basal portion of lower 

 mandible yellowish ; legs greenish brown, and dark brown ; 1st primary 0'7, 

 shorter than the 2nd, which is equal to or a trifle longer than the 8th, the 

 4th longest. Culmen 0'4, wing 2*1, tail, 1'5, tarsus 0'67 inch. In the 

 summer it is rather paler and the alar bars less clearly defined. 



Hob. Asia from the Lena to Lake Baikal and south to the 

 Himalayas, wintering in India, Burma, and south China ; occurs 

 regularly on passage on the western slopes of the Ural, and has 

 occurred once in Heligoland and once in England. 



Frequents pine and birch woods and bush covered valleys, 

 and in its general habits has much affinity with the Goldcrest. 

 Its call-note is a shrill prolonged tsii, and its song is melodious 

 and varied and very loud for so small a bird. Its nest is placed 

 on the branch of a tree near the stem, is oven-shaped, con- 

 structed of grass-bents and moss and lined with feathers and 

 horse or cattle hair and its eggs which are deposited in May or 

 June are white dotted and spotted with violet, ash-grey, and 

 red, the spots being frequently collected round the larger end, 

 and measure 14 by 11 to 15 by 10*5 millimetres (0'59 by 041 

 inch). 



The form which breeds in the Himalayas has been separated 

 specifically by Gatke (Phylloscopus newtoni) but after a careful 

 comparison of specimens I fail to see even subspecific differences 

 that are constant. 



153. TEMMINCK'S WILLOW- WARBLER. 

 PHYLLOSCOPUS CORONATUS. 



Phylloscopus coronatus, (Temm. and Schlegel.) Faun. Jap. Aves. p. 48, 

 pi. xviii. (1847) ; David and Oust. Ois. Chine, p. 269 ; Seebohm, 

 Cat. B. Br. Mus. v. p. 49 ; (Gates), F. Brit. Ind. Birds, i. p. 417. 



