TURDIDAI—WARBLERS. 35 
neath ; Zegs, feet and claws d/uish-grey ; rides brown. Length 
5 inches ; culmen 0°6 ; wimg 3°2; tail 2°25 ; tarsus 0°8. 
Adult (Winter): Above less green and beneath paler. 
Birds of the Year: Indistinguishable from adults in 
winter. 
Distribution: Breeds in Northern and Central Europe, 
passing through Southern Europe on migration, and wintering 
in South Africa. Of casual occurrence only in England. 
Habitat: Willow and other thickets in damp situations ; 
gardens, orchards, &c. 
OLIVE-TREE WARBLER. 
Hypolais olivetorum (Sérick). 
Adult (Summer): Above Jdrownish-grey, tinged with 
olive, especially towards tail; wings and tail browner and 
darker, with whitish margins; superciliary streak whitish ; 
beneath pale buffish-white, clearer on chin; throat, central 
abdomen and flanks washed with greyish-brown ; bill above 
dark brown, beneath pale horn; legs, feet and claws dark 
bluish-grey ; irides dark brown. Length 6 inches ; culmen 0°7 ; 
wing 3°37; tail 2°8; tarsus o'9. 
Adult (Winter): Greyer beneath, otherwise similar. 
Young after first moult: Scarcely differ from adults in 
winter dress. 
Distribution: Eastern Spain; abundant in Greece, and 
found also through Asia Minor and in Northern Palestine. 
Winters in Northern Africa. 
Habitat: Olive and oak plantations. 
OLIVACEOUS WARBLER. 
Hypolais pallida (4/7). 
Adult (Spring). Above pale olive-brown, rather lighter 
on rump; superciliary streak yellowish, indistinct ; wings and 
tail dark brown with lighter margins ; frst primary longer than 
coverts ; beneath buffy-white, purest on throat and centre of ab- 
Dia 
