143821 Green Woodpecker Picus viridis L 32-34cm. Unobtrusive and often shy. Climbs trees but also feeds on ground, mainly on ants. Flight is undulating. Sexes are separable. Adult Male has greenish olive upperparts and whitish underparts. Has red crown, black ‘mask’ and red-centred black ‘moustache’. In flight, yellowish rump is striking. Adult female is similar but ‘moustahce’ is all-black. Juvenile recalls adult male but is heavily spotted. Voice yaffling and yelping calls are distinctive. Status Fairly common in open woodland, parks and gardens.