The yellow-browed warbler (Phylloscopus inornatus) is a leaf warbler (family Phylloscopidae) which breeds in temperate Asia.
It was formerly considered to comprise three subspecies, but P. i. humei and P. i. mandellii are now split as a separate species, Hume’s leaf warbler P. humei, leaving P. inornatus monotypic. The two sister species differ slightly but consistently in morphology, bioacoustics, and molecular characters.= Before the species was split, the names yellow-browed willow warbler and inornate warbler were used by a few authors.
This is one of the smaller Old World warblers, at 9.5–11 cm long and weighing 4–9 g distinctly smaller than a chiffchaff but slightly larger than allas’s leaf warbler. Like many other leaf warblers, it has overall greenish upperparts and white underparts. It also has prominent double wing bars formed by yellowish-white tips to the wing covert feathers (a long bar on the greater coverts and a short bar on the median coverts), yellow-margined tertial feathers, and long yellow supercilium. Some individuals also have a faint paler green central crown stripe though many do not show this.=
Rare bird in our area, but possible to see in autumn migration, especialy near the Black Sea coast.