House Sparrows eat various kinds of seed supplemented by some insects. Rural birds tend to eat more waste seed from animal dung and seed from fields, while urban birds tend to eat more commercial birdseed and weed seed. Studies of the contents of House Sparrow stomachs in Alabama, Conn., Illinois, Iowa, Mass., Michigan, Miss., Penn., and Vermont have shown approximate amounts of seed to be 60% livestock feed (corn, wheat, oats, etc.), 18% cereals (grains from storage or from fields), 17 % weed seed, and 4% insects.
Animal Foods: insects; terrestrial non-insect arthropods
Plant Foods: seeds, grains, and nuts; fruit
Primary Diet: omnivore