Sitta europaea caesia

Interesting facts: The nuthatch nimbly climbs up and down tree trunks using its strong claws, even turning upside-down. There it finds spiders and insects hiding in the crevices in the bark. When nest building, it lines natural tree hollows or abandoned woodpecker holes with tiny wood chips. It blocks in the entrance to the hollow with spittle and mud until there is only a tiny opening. This protects the young from predators like crows or martens.

Characteristics: Upperside of the plumage blue-grey, underside light rust-coloured with white throat, head with clear, black eyestripe; powerful, pointed, woodpecker -like beak; short legs, toes with powerful claws

Body length: Less than 20 cm (sparrow length)

Distribution: Deciduous and mixed forests with old trees, boulevards, parks and gardens even in city centres