English: Dusky Warbler, Dusky Leaf Warbler 
Russian: Бурая пеночка    
Mongolian: Бүхт дуучшувуу
German: Dunkellaubsanger
French: Pouillot brun 
Japanese: ムジセッカ (Muji-sekka)       

Body length: 10-13 cm
Wing span: 17-19 cm

Breeding season: May-August

Egg number: 5-6
Egg colour: Similar to other Phylloscopus warblers.
Brood:  1 per year

Global status: Least concern
Regional status: Least concern

Food: Beetles, snails, small moths, also seeds and berries.

Habitat: Nests on the ground underneath dense willow trees, thickets and bushes near taiga bogs and wet meadows in high mountains taiga forests, forest steppe and river valleys. On migration, they migrate through high vegetated areas with rocks and cliffs, and bushes, also river valleys with young deciduous trees and bushes.