The Yellowhammer is a robust bird, with a thick seed-eater's bill. The male has a bright yellow head, yellow underparts, and a heavily streaked brown back. The female is much duller, and more streaked below.
The familiar, if somewhat monotonous, song of the cock is A little bit of bread and no cheese.
Its natural food consists of insects when feeding young, and otherwise seeds. The nest is on the ground. 3-6 eggs are laid, which show the hair-like markings characteristic of those of buntings.