Chaffinch or House Sparrow?

These two get mixed up constantly. Here is what actually separates them, taken from each bird's own page.

Illustration of a chaffinch

Chaffinch

Fringilla coelebs

A female chaffinch and a female house sparrow are both brown, but only the chaffinch has two crisp white wing bars and white in the tail. The sparrow's bill is thick and blunt, the chaffinch's is finer and more conical, and sparrows are almost never alone while chaffinches often are.

Illustration of a house sparrow

House Sparrow

Passer domesticus

Side by side

ChaffinchHouse Sparrow
Size Robin-sized but longer and slimmer, about 14-15cm, with a noticeably long tail. Robin-sized at 14–15cm, but chunkier, flatter-headed and thicker-billed
Where you'll see it On the ground under feeders and along hedge bottoms far more often than on the feeder itself. Feeders, dense hedges, gutters and roof eaves — rarely far from a building
What it eats Seeds year-round, with caterpillars and other insects taken through the breeding season and fed to chicks. Seeds and grain all year; adults switch to insects to feed chicks
When Resident all year. Numbers swell from October as continental birds arrive to winter here. Resident, all twelve months
Status Green listed Red listed

Still not sure? Describe what you saw and we will rank every garden bird against it — including these two.

Both descriptions are taken from the species pages, which cite the BTO and RSPB. Reviewed 2026-09-20.