Mugimaki Flycatcher
Ficedula mugimaki
The mugimaki flycatcher is 13 to 13.5 centimetres long. It has a rattling call and often flicks its wings and tail. The adult male has blackish upperparts with a short white supercilium behind the eye, a white wing-patch, white edges to the tertials and white at the base of the outer tail-feathers. The breast and throat are orange-red while the belly and undertail-coverts are white. The female is grey-brown above with a pale orange-brown breast and throat.
ID text from Wikipedia, CC BY-SA 4.0
Yellow-rumped Flycatcher
Ficedula zanthopygia
In all plumages the yellow rump is distinctive. The white supercilium of the male is distinctive, separating it from the narcissus flycatcher and the green-backed flycatcher. Females and first year males are olive grey above with blackish tail. Hartert (1910) treated this species as a member of the narcissina group. Some individuals with yellow supercilium have been considered as hybrids with the narcissus flycatcher. Included in this species complex was the species called Elise's flycatcher, usually treated as a subspecies of the narcissus flycatcher.
ID text from Wikipedia, CC BY-SA 4.0

Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Mugimaki Flycatcher and Yellow-rumped Flycatcher.