The colourful Green Woodpecker has a bright red cap, red moustache (male) and blue-white eyes. It has a call like a car alarm or cackling laugh. It will visit gardens looking for ants' nests.
The female Green Woodpecker has similar plumage but with a black moustache.
The juvenile is similar but with a speckled front and back.
Although called a woodpecker, it is more usually seen digging its beak in grass looking for insects, especially ants. Woodpeckers have extremely long, sticky tongues to scoop out insects.