Pallas's Warbler (Phylloscopus proregulus) adult perched on twig Hebei, China May

- Image ID: M6NXPP

Pallas's Warbler (Phylloscopus proregulus) adult perched on twig Hebei, China May

Neil Bowman / Alamy Stock Photo

Image ID: M6NXPP

Location: Hebei, China