チメドリ Schoeniparus brunneus

A small dark brown bird of the shaded understory and forest floor, found hilly forests. Brown overall; gray face is marked with a thin, curving black eyebrow and a weaker black moustachial stripe, though these marks are often hard to discern in the darkness of the thick growth in which it likes to forage. Song is a short but melodic warble; various calls, including a low churring note and a quick “whee-chuck.”