
Photo: Afsar Nayakkan (afsarnayakkan) · CC BY 4.0 (May be cropped or resized)
Arundinax aedon
Habitat
Dense vegetation such as reeds, bushes and thick undergrowth
Range
Breeds in the temperate east Palearctic from south Siberia to west Mongolia; winters in tropical South and Southeast Asia
Clutch size
5–6 eggs
Size
16–17.5cm
The thick-billed warbler is a large warbler, 16–17.5 centimetres long and nearly as big as the great reed warbler. The adult has an unstreaked brown back and buff underparts with few obvious distinctive plumage features. The forehead is rounded and the bill short and pointed. It is a passerine of dense vegetation such as reeds, bushes and thick undergrowth, and it is not easy to pick out by plumage alone. (Wikipedia, general species account)
It breeds in the temperate east Palearctic, from south Siberia to west Mongolia, and is migratory, wintering in tropical South Asia and Southeast Asia. Five or six eggs are laid in a nest in a low tree. It is a very rare vagrant to western Europe. (Wikipedia, general species account)