Alström's Warbler

Alström's warbler measures 11-12 cm in size. The female is on average smaller than the male. The Alström's warbler can be commonly mistaken for Martens's, Gray-crowned, White-speckled, and Bianchi's warblers. The bird has a greyish-black color that fades on the forehead as well as a mix of green that surrounds the eyes. The underside of the bird is a vibrant yellowish-green color whereas the wings and back have a grey crown with black stripes. This bird has a distinct yellow eye-ring that may diffuse above the eye. To distinguish this bird from others, the Alström's warbler is larger billed, smaller tailed, and has a more distinct white lining in the outer tail feathers than Martens's and Gray-crowned warblers.

Alström's warbler often forages in a low, dense growth of forests. This bird is known to eat insects and catch prey during short flights. The bird is not currently globally threatened. This bird has a very large range and does not approach the potential of being a vulnerable species. The warbler typically breeds in warmer, temperate areas. These areas are found within evergreen broadleaf forest zones and lush undergrowth in mature forests. It has a scattered breeding range across central and eastern China. The warbler tends to breed in bushes and small trees of low to moderate height, in recently cleared areas. This bird is a migratory species. It migrates during the winter to southern Myanmar, Thailand, Cambodia, southern Vietnam, and southern China.