The Yellowhammer is a robust 15.5–17 cm long 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 often described as A little bit of bread and no cheese. (Wikipedia)
It is most commonly found on lowland arable and mixed farmland, probably due to the greater availability of seeds. It nests in hedges, patches of scrub, and ditches, especially if these have a wide grass margin next to them, and a cereal crop next to the margin. Hedges of up to two metres tall are preferred, and they will not nest until it is in full leaf, building the nest next to the hedge if it is built before this. In winter, the flocks feed at good seed sites, such as newly-sown fields and over-wintered stubbles. (Wikipedia)
I feed these birds when is winter. When is summer they live on fields.