Middendorff's grasshopper warbler

The Middendorff's grasshopper warbler (Helopsaltes ochotensis) is a species of Old World warbler in the family Locustellidae.It is found in Brunei, China, Hong Kong, Indonesia, Japan, South Korea, Malaysia, the Philippines, Russia, Taiwan, and the United States. The common name commemorates Alexander Theodor von Middendorff (1815–1894), a German–Russian naturalist who traveled extensively in Siberia. 15.5 cm (6.1 in) length. Crown, nape, lores, eye-stripe greyish brown. Mantle browner and more olive. Supercilium pale creamy extending to ear coverts. Rump and uppertail coverts more yellowish or rufous brown. Graduated, white-tipped tail may appear rounded.Voice: Song; high-pitched, spaced chit, chit, precedes trilled trrrrrrrr-schoy-schoy-schoy, call; tluk, tluk,.... also a short song flight. Habitat: Forests near water and scrubwoods.