Northern Wheatear
Oenanthe oenanthe
The northern wheatear is larger than the European robin at 14.5–16 cm (5.7–6.3 in) in length. The northern wheatear also has a wingspan of 26–32 cm and weighs 17–30 g. Both sexes have a white rump and tail, with a black inverted T-pattern at the end of the tail. The plumage of the summer male has grey upperparts, buff throat and black wings and face mask. In autumn it resembles the female apart from the black wings. The female is pale brown above and buff below with darker brown wings. The male has a whistling, crackly song.
ID text from Wikipedia, CC BY-SA 4.0

Western Black-eared Wheatear
Oenanthe hispanica
The breeding male has the forehead and crown white or nearly white, the mantle buff, and the wings blacker than those of the northern wheatear. The underparts are white tinged with buff. The back, upper tail coverts and most of the tail are white. A black mask extends from the ear coverts to the bill. The throat can be either black or white. In autumn and winter the head and mantle are distinctly buff, as are the underparts (including the throat in non-black-throated individuals), but the buff varies in intensity.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
And 27 more countries.
Learn this pair in the BeakBrain App
Photo and call practice. Coming soon to iPhone and Android.
Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Northern Wheatear and Western Black-eared Wheatear.