A chaffinch is a small, common songbird in Europe. The male is the one people notice: a pink-brown chest, a grey-blue cap, and two clear white bars on the wings. The female is paler and browner. You hear them in gardens, parks, and woods, and they often hop on the ground looking for seeds. It is an ordinary countryside bird, not a rare one, and the word is simply the bird’s name — not slang, and not a poetic use of “finch.” If you already know robin or sparrow as “the little bird in the garden,” a chaffinch belongs in that same everyday group, just with a more colourful male.