Chinese Leaf-warbler (Phylloscopus yunnanensis) adult male, singing, perched at top of tree, Old Peak, Hebei, China, may

- Image ID: CNK4DM

Chinese Leaf-warbler (Phylloscopus yunnanensis) adult male, singing, perched at top of tree, Old Peak, Hebei, China, may

FLPA / Alamy Stock Photo

Image ID: CNK4DM