Family Leaf-warblers (Phylloscopidae)

Least Concern

Eastern Bonelli's Warbler (Phylloscopus orientalis)


French: Pouillot oriental German: Balkanlaubsänger Spanish: Mosquitero oriental

Phyllopneuste orientalis

C. L. Brehm

, 1855,

Wadi Halfa, Nubia, north Sudan


Formerly treated as conspecific with P. bonelli; morphological differences virtually non-existent (fractionally larger and longer-winged, often with pale wingpanel in spring), but call a quick flat “chip” vs a loud whistled “hu-eet”, thus a much higher maximum frequency (3) and much shorter note length (4); moreover, song similar but distinguishable#R, consisting of rapid downslurred vs rapid upslurred notes (ns[2]), with lower maximum frequency (ns[2]) and smaller frequency range (ns[2])#R. Monotypic.


SE Europe from Croatia S to Albania and E to S Romania, Bulgaria, N Greece, and W & SW Turkey; isolated populations in E Anatolia, Syria, Lebanon and W Iran. Winters in E Africa (E Chad, SC Sudan and Eritrea).

Descriptive notes

11·5 cm; 5·5–10·5 g. A medium-sized, mostly greyish, and relatively plain leaf-warbler. Has whitish supercilium, buff smudge on lores, brown cheek... read more


Song a trill, very similar to that of P. bonelli but very slightly softer and of shorter... read more


Breeds in warm deciduous woodland, mainly of oak (Quercus) and beech (Fagus),... read more

Food and feeding

Food small invertebrates; some fruits taken in autumn. Forages alone, in pairs, or in mixed-species flocks, in canopy of trees, in bushes... read more


Few data. Season Apr/May–Aug. Nest a dome-shaped ball of grass, leaves, moss and hair, well concealed on ground. Clutch 4–6... read more


Migratory. Spends non-breeding season in acacia (Acacia) belt along S edge of Sahara from... read more

Status and conservation

Not assessed. Locally common. Population calculated as being c. 1% of that of P. bonelli; numbers in Albania, Greece and W Turkey (Thrace) combined estimated at 15,... read more

Recommended citation

Clement, P. (2019). Eastern Bonelli's Warbler (Phylloscopus orientalis). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 12 December 2019).