Blue Tit or Coal Tit?

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

Illustration of a blue tit

Blue Tit

Cyanistes caeruleus

The coal tit has a black head with a white patch on the nape — visible from behind — and is buff below with no yellow or blue anywhere. If the bird looks grey and dull rather than blue and yellow, it is a coal tit.

Illustration of a coal tit

Coal Tit

Periparus ater

A blue tit has a blue cap, blue wings and tail, and a yellow breast. A coal tit has none of those — black cap, olive-grey wings, buff underparts — and is visibly smaller.

Side by side

Blue TitCoal Tit
Size Smaller than a robin at about 12cm — one of the smallest birds at most feeders About 11cm — the smallest UK tit, clearly smaller than a blue tit and much smaller than a robin.
Where you'll see it Feeders, the outer twigs of trees and shrubs, and any hole it can peer into Briefly at feeders, and in conifers and tall trees; it seldom stays put for more than a second or two.
What it eats Insects and caterpillars in summer; seeds, nuts and fat in winter Insects and spiders in summer, conifer seed in winter, plus sunflower hearts and peanut fragments it carries away.
When Resident, all twelve months Resident all year; most obvious in autumn and winter when it is actively hoarding food.
Status Green listed Green 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.