Body length: 13-14 cm
Body mass: 8-10 g
Appearance: upperparts with brown and white patches, underparts white. Bill thin, pointed, and slightly downcurved.
Inhabits broadleaved and coniferous forests (even smaller copses on farmland) across the country. Nests in narrow vertical cracks in trunk, e.g. under protruding area of bark. Nest of small twigs, leaves, bark and phloem fibres and wool. Two broods a year. Habit of creeping up trees facilitated by very long claws. Eats seeds and insects.
Closely-related short-toed treecreeper looks very similar. Mainly resident.
Descriptions drawing on content of Ptaki Polski (“Birds of Poland”) - a book authored by Andrzej G. Kruszewicz, and published by MULTICO Oficyna Wydawnicza Sp. z o.o.