
Photo: grihahasanov · CC BY 4.0
Phylloscopus plumbeitarsus
Range
Northern Mongolia, Manchuria and adjacent areas
The two-barred warbler is a leaf warbler closely related to the greenish warbler, to which it was formerly considered the same species. It was formerly included in the 'Old World warbler' assemblage and is found in northern Mongolia, Manchuria and adjacent areas (Wikipedia, general species account).