Lesser Spotted Woodpecker

The lesser spotted woodpecker is the smallest European woodpecker, 14–16.5 centimetres long with a wingspan of 24–29 centimetres, weighing 17–25 grams. Because of its size and its habit of staying in the tops of tall trees in woods and parks it is often overlooked, but if seen on a trunk it can be identified at once by the broad barring on the wings and narrower bars across the lower back. It has the same stumpy, almost triangular look as the great spotted woodpecker when bounding between trees. (Wikipedia, general species account)

Its range is the Palearctic region, with several subspecies recognised. It was formerly placed in the genus Dendrocopos. Its habits are very similar to those of the great spotted woodpecker, and its insect food is similar. The note is a repeated keek, loud for so small a bird, and a vibrating rattle that serves instead of a song and can with experience be told from the larger species'; it is heard at all times but most often when courtship begins early in the year. (Wikipedia, general species account)