Yellow-Rumped Flycatcher

The yellow-rumped flycatcher, also called the Korean or tricolor flycatcher, is a flycatcher of eastern Asia. It breeds in parts of Mongolia, Transbaikal, southern China, Korea and western Japan, and was first found wintering in central India in 1989, since then also in south-western India and Sri Lanka. The yellow rump is distinctive in all plumages, and the male's white supercilium separates it from the narcissus and green-backed flycatchers. (Wikipedia, general species account)

Females and first-year males are olive-grey above with a blackish tail. The clutch is 4–7 eggs, incubated by the female alone for about 11–12 days, and the young fledge after 14–15 days. (Wikipedia, general species account)