Seveeral Hippolais species.
These warblers are always associated with trees, though normally in fairly open woodland rather than tight plantations. They are quite clumsy in their movements.
These are plump, strong-looking birds with long bills, strong feet and long wing. Most are unstreaked greenish or brownish above and cream or white below. They are insectivorous, but will occasionally take berries or seeds.
Species breeding in temperate regions are usually strongly migratory.
The species are:
- Booted Warbler, Hippolais caligata
Sykes' Warbler, Hippolais rama
Western Olivaceous Warbler, Hippolais pallida
Eastern Olivaceous Warbler, Hippolais opaca
Upcher's Warbler, Hippolais languida
Olive-tree Warbler, Hippolais olivetorum
Melodious Warbler, Hippolais polyglotta
Icterine Warbler, Hippolais icterina