House Sparrow

The house sparrow is a small bird about 16cm long and 24–39.5g. Females and young are pale brown and grey, while males have brighter black, white and brown markings. Most of its calls are variations on a short, frequent chirp, rendered as chirrup or philip, used as a contact call and by males to claim a nest site; in the breeding season males repeat it rapidly as a kind of song, and aggressive birds give a trilled chur-chur-r-r-it-it-it (Wikipedia, general species account).

It is native to most of Europe, the Mediterranean and much of Asia, and introductions have made it the most widely distributed wild bird in the world. It is strongly tied to people, living in towns and farmland, and usually avoids extensive woodland, grassland and deserts far from human settlement. It naturally eats the seeds of grains and weeds but is an opportunistic omnivore that often catches insects (Wikipedia, general species account).