Atom detail

The “true sparrows”, the Old World sparrows in the family Passeridae, are small passerine birds. Generally, sparrows tend to be small, plump brown-grey birds with short tails and stubby yet powerful beaks. The differences between sparrow species can be subtle. They are primarily seed-eaters, though they also consume small insects. A few species scavenge for food around cities and, like gulls or pigeons, will happily eat virtually anything in small quantities. This family ranges in size from the Chestnut Sparrow (Passer eminibey), at 11.4 cm (4.5 inches) and 13.4 g., to the Parrot-billed Sparrow (Passer gongonensis), at 18 cm (7 inches) and 42 g. (1.5 oz).

The Old World true sparrows are found indigenously in Europe, Africa and Asia. In Australia and the Americas, early settlers imported some species which quickly naturalised, particularly in urban and degraded areas. House Sparrows, for example, are now found throughout North America, in every state of Australia except Western Australia, and over much of the heavily populated parts of South America.