Two-barred Greenish Warbler (Phylloscopus plumbeitarsus) adult, perched on twig, Hebei, China, may

- Image ID: CNK4KD

Two-barred Greenish Warbler (Phylloscopus plumbeitarsus) adult, perched on twig, Hebei, China, may

FLPA / Alamy Stock Photo

Image ID: CNK4KD