One of my favourite birds and also one of the commonest. However, in recent years their urban population has fallen dramatically. Social birds that tend to nest in colonies they are happy to mix partners. They love being around people and don’t tend to stray far from them. They don’t migrate just move to the country! Their biggest enemy is the cat. But they equally love moths although they tend to be vegetarian.
Anyway, I love them and I’m hoping to put on an event in conjunction with World Sparrow Day.
Generally, sparrows are small, plump, brown-grey birds with short tails and stubby, powerful beaks. The differences between sparrow species can be subtle. Members of this family range in size from the chestnut sparrow (Passer eminibey), at 11.4 centimetres (4.5 in) and 13.4 grams (0.47 oz), to the parrot-billed sparrow (Passer gongonensis), at 18 centimetres (7.1 in) and 42 grams (1.5 oz). Sparrows are physically similar to other seed-eating birds, such as finches, but have a vestigial dorsal outer primary feather and an extra bone in the tongue. This bone, the preglossale, helps stiffen the tongue when holding seeds. Other adaptations towards eating seeds are specialised bills and elongated and specialised alimentary canals.