Note: Do not rely on this information. It is very old.
Yellowhammer
Yellowhammer (Emberiza citrinella), a well-known British Bunting, generally distributed in temperate Europe. The male is a little more than 6 inches long, with lemon-yellow plumage marked with chestnut and black; the colours of his mate are less brilliant. In summer these birds feed chiefly on insects; in autumn on wild fruits and berries, and in winter on grain.