VOL. X.] MOULTS OF BRITISH PASSERES. 289 



Juvenile. — Like the adults, but the crown dark sooty- 

 brown instead of green and the eye-stripes and the median 

 stripe on the crown much less distinct than in the adults and 

 pale buff, not so yellow ; mantle, scapulars and back brown 

 with only a tinge of green and rump white tinged mth buff 

 instead of pale yellow as in the adults ; tips of wing-coverts 

 and edgings of inner secondaries yellowish-buff instead of 

 yellow : under-parts pale buff instead of greyish-white 

 tinged with yellow. 



First Winter. — The juvenile body-feathers and appar- 

 ently the median and lesser wing-coverts and perhaps some 

 of the inner greater coverts and innermost secondaries are 

 moulted in early autumn, but not the rest of the wings nor 

 the tail. L^nfortunately I have not been able to examine 

 an example actually in moult from the juvenile to the first 

 winter plumages. After the moult the bird becomes like 

 the adult except that the tips of the wing-coverts are buffish- 

 white and not so yello^\■. 



Dusky Warbler {Ph. fnscatus). 



Adults. — Complete moult in September and October, 

 In March and April the body-feathers and the innermost 

 secondaries are moulted, but apparently not the tail nor the 

 rest of the wings. The sexes and the winter and summer 

 plumages are alike. 



Juvenile. — Much resembling the adults but greyer on 

 the breast, not so buff on the flanks and the eye-stripe and 

 ear-coverts greyer and not so buff. 



First Winter. — The juvenile body-feathers are moulted 

 in August but apparently not the wings, wing-coverts or tail. 

 After the moult the bird resembles the adult, but is more 

 yellowish on the centre of the throat and belly and has a 

 yellowish, rather than rufous, tinge on the rest of the under- 

 parts. The spring moult is like that in the adults and after 

 this the bird is like the adult. 



Radde's Bush-Warbler {Herbivocula schwarzi). 



Adults. — Complete moult in early autumn. Apparently 

 no moult in spring. The sexes are ahke. Abrasion gradu- 

 ally makes the upper-parts more grejdsh-brown, less ohve, 

 and the under-parts paler and whiter. 



Juvenile. — (Not examined.) 



First Winter. — Those specimens with a considerable 

 amount of yellow on the under-parts may be first winter 

 birds, but as no juveniles and no moulting birds have been 

 available for examination, it is impossible to say. 



