There are many species of woodpeckers, but only two wrynecks, worldwide, but only three woodpeckers and one wryneck (a rare migrant) in the UK.
Woodpeckers are small to large birds, mostly boldly-patterned, sharing features such as a sharp, chisel-like bill, round head, broad wings and a stiff tail, often used as a prop when perched upright on a tree. They also have two toes facing forwards and two back to give a better grip on rounded branches. Wrynecks are well-camouflaged, brown birds with shorter bills and normal tails.
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