House Sparrows also known as ‘Chorui Pakhi’ are well-known bird in Bangladesh. They are usually seen in small to medium-sized groups, but may occur in huge numbers. The male has a conspicuous grey crown, black face and throat, and dark black and brown upperparts. The remainder of the under parts are pale grey-brown. When breeding, the black of the throat extends to the chest and upper belly. The bill also changes from brown to black.