WOODPECKERS ARE EASY
Woodpeckers provide a surprising amount of challenge to British birdwatchers when it comes to identification. But we only have three resident species of woodpecker in this country and they are all radically different from each other. Firstly, remember that there are only two common woodpeckers: Lesser Spotted is scarce. Green Woodpeckers are easily the largest, as big as a Mistle Thrush; grass green with a yellow rump, and spend much of their time feeding on the ground, particularly on grass (probing for ants). Great Spotted Woodpeckers are about Starling sized and the only common black-and-white woodpecker. They have obvious white shoulder patches and are the only UK woodpecker with red on the underparts. Lesser Spotteds are tiny (sparrow-sized) and spend a lot of time in tiny twigs at the top of trees. They are barred white on the back and have no red on the underparts. If in doubt, a black-and-white woodpecker is a Great Spotted Woodpecker. See? Easy!
Lesser Spotted Woodpecker