Barred Warbler

Overview

The barred warbler (Curruca nisoria) is a species of bird in the warbler family Sylviidae which breeds across temperate regions of central and eastern Europe and western and central Asia. This passerine bird is strongly migratory, and winters in tropical eastern Africa.
It is the largest Curruca warbler, 15.5–17 cm in length and weighing 22–36 g, mainly grey above and whitish below. Adult males are dark grey above with white tips on the wing coverts and tail feathers, and heavily barred below.

Summary from Wikipedia, available under CC BY-SA 4.0.