This bird is quite a large tit (14 cm) in yellow, green and black. The cheeks are almost entirely yellow and perhaps the most characteristic feature of the plumage (which is accentuated in its name). Like the Great tit (Parus major), it also has a black band on its chest. Like other tits, it subsists on a combination of insects, seeds and berries, thriving at a fairly high altitude: 350 to 3,100 m altitude.