A
House Sparrow, a "true
sparrow" of the family
Passeridae, as opposed to
American sparrows. There are other birds, such as the
Dunnock, also known as a Hedge Sparrow — a relic of the old practice of calling
any small bird a "sparrow". There are 35 species of Old World sparrows, in four
genera.
Photo credit: Fir0002