Hosta

The brown-flanked bush warbler (Horornis fortipes), also known as the brownish-flanked bush warbler, is a species of bush-warbler of the family Cettiidae. It was formerly included in the "Old World warbler" assemblage. It is found in Himalayas, South China and Southeast Asia.^[1]

References

Genera and members of the family Cettiidae
Genera	Abroscopus – Abroscopus warblers (3 species) Urosphena – stubtails (5 species) Tesia – tesias (5 species) Horornis – (14 species) Cettia – typical bush warblers (4 species) Tickellia – broad-billed warbler Phyllergates - (2 species) Scotocerca - streaked scrub warbler
Abroscopus	Black-faced warbler Rufous-faced warbler Yellow-bellied warbler
Cettia	Bush-warbler Cetti's warbler Chestnut-crowned bush warbler Chestnut-headed tesia Grey-sided bush warbler
Horornis	Aberrant bush warbler Bougainville bush warbler Brown-flanked bush warbler Fiji bush warbler Hume's bush warbler Japanese bush warbler Manchurian bush warbler Palau bush warbler Philippine bush warbler Shade bush warbler Sunda bush warbler Tanimbar bush warbler Yellow-bellied bush warbler
Phyllergates	Mountain tailorbird Rufous-headed tailorbird
Urosphena	Asian stubtail Bornean stubtail Neumann's warbler Pale-footed bush warbler Timor stubtail