
Photo: (c) Forest Botial-Jarvis, some rights reserved (CC BY) · CC-BY (May be cropped or resized)
Phylloscopus poliogenys
Habitat
Subtropical or tropical moist lowland and moist montane forests
Range
Bangladesh, Bhutan, China, India, Laos, Myanmar, Nepal, Thailand and Vietnam
The grey-cheeked warbler is a leaf warbler native to Bangladesh, Bhutan, China, India, Laos, Myanmar, Nepal, Thailand and Vietnam. Its natural habitats are subtropical or tropical moist lowland forests and moist montane forests (Wikipedia, general species account).
It was previously placed in the genus Seicercus, until a 2018 molecular study found that neither Phylloscopus nor Seicercus was monophyletic and the genera were merged. The source read gives no plumage, size, diet or breeding information, so none is stated.