At about 14 centimetres long, the largest member of the tit family in Europe is easily identified by its yellow underparts and black central band, its glossy blue-black head with big white cheek patches, moss-green back and the narrow white wing-bar on its blue-grey wing. The male has a broader black median band and a stronger yellow colour below.
The sedentary great tit breeds in all kinds of woodland and in immediate proximity to human populations in parks and gardens. It is found across Europe.
The great tit nests in roomy nest boxes, tree hollows, air ducts and even letterboxes. It produces several broods per year and many eggs per brood. It feeds on insects and seeds, suet, beech nuts and other similar foods.