{ 160 ) 



Young birds in first plumage up to 

 October have more yellow on the lower 

 parts, the throat and breast distinctly 

 spotted, and the dark centers and 

 rufous edges of the upper feathers 

 more distinct. Later, from October 

 to November, the rufous edges increase 

 in size, and the spots disappear from 

 the throat and breast. Adult plumage 

 is assumed during the winter. 



All three phases of plumage may be 

 met with in the fall, but only the 

 adult phase in the spring. 



Distribution. — This Warbler breeds 

 in eastern Siberia, passing the Yangtse 

 Valley on migration to winter in 

 India. 



STEEAKED GKASSHOPPER 

 WARBLER. 



LOCUSTELLA LANCEOLATA, TEMM. 



Description. — Length five inches. 

 Bill dark brown, yellow at the base of 

 the lower mandible. Tarsus white. 

 Iris brown. 



Eye-stripe almost obsolete. Upper 

 parts olive brown, the feathers all 

 having conspicuous blackish centers. 

 The lower parts are white, with a 

 varying amount of yellow washing, 

 most of the feathers being streaked 

 black. Sometimes the upper throat, 

 abdomen, and lower tail coverts are 

 without streaks. The tail is plain rus- 

 set brown with no white tip above or 

 below, serving to distinguish it from 

 Pallas' Grasshopper Warbler. 



Distribution. — Eastern Europe, 

 Siberia, and China generally, passing 

 the Yangtse Valley on migration to 

 winter in Burmah and India. 



