WILLOW-WARBLER. E83 



proportionally longer, and the second is shorter than the tifth. 

 Length, 4-9 ins. Wing, 2-5 ins. Taisus, -85 in. 



OliYaceous Warbler. Hypolais pallida 

 (Hempr. and Ehr.). 



A single male Olivaceous Warbler was shot in Sussex in 

 May, 191 5. It breeds in south-east Europe, western Asia and 

 north-east Africa, and winters further south in eastern Africa. 

 It is unlikely that a bird with this range should frequently 

 stray so far as Britain. It is pale olive-brown above, and 

 white, faintly tinged with buff, below, and has an indistinct 

 eye-stripe. Length, 5 ins. Wing, 2-63 ins. Tarsus, "83 in. 



Willow-Warbler. Phylloscopus trochihts (Linn.). 



The Willow-Warbler, Willow-Wren, or, in some districts, 

 ♦' Peggy-Whitethroat " (Plate 78), is the most abundant of 

 all our summer residents ; it is common throughout the British 

 Isles, and great numbers, as birds of passage, travel along our 

 coasts in spring and autumn. It is found in summer through- 

 out Europe except in the north-east and south-east ; some 

 winter in the south of Europe, but most in Africa, even so far 

 south as Cape Colony. In north-east Russia and Siberia a 

 greyer form, the Northern Willow-Wren, P. t. evej'svianiii 

 (Bonap.), summers, and, as first shown by Dr. C. B. Ticehurst, 

 some of this race pass along our south and east coasts regularly 

 in sprmg and autumn. 



Three leaf-warblers, as the birds are called on account of 

 their habits, are summer residents in Britain, and all are 

 greenish yellow birds. The Willow- Wren is smaller and less 

 yellow than the Wood-Wren, but is so similar to the Chiffchaff 

 that it is difficult to see the greener back and paler legs in 

 a poor light or when the active bird is amongst the foliage ; 



