
Eurasian Treecreeper
Certhia familiaris
The Eurasian Treecreeper is a tiny, brown-and-white woodland bird with a slender, downcurved bill and stiff tail feathers that brace it as it creeps up tree trunks. Widespread from western Europe to Japan, it lives in mature woods and parks, especially conifers where it overlaps with the Short-toed Treecreeper; the two are best told apart by their songs. Most birds are resident, though some northern birds move south-west in autumn.
Did you know?
- Where available, it readily nests behind the soft, shaggy bark of planted giant sequoias.
- Wood ants compete for the same prey, so treecreepers are scarcer in forests with many ant mounds.
Voice
About the species
Identification
A small, brown-mottled bird with pale underparts. It has a long, downcurved bill, slim body and stiff tail, which it uses as a prop while climbing up tree trunks. It often moves up the trunk in a spiral and flies to the foot of another tree with a short, quick flight. Compared with the Short-toed Treecreeper it has whiter underparts, a whiter eyebrow and warmer, more spotted upperparts.
Family
Certhiidae
Size
Tiny (goldcrest)
Colours
brown, white, grey
About the habitat
Mature coniferous and mixed forest and old broadleaf woodland, as well as parks, especially with old trees, loose bark and deadwood.
Diet
Mainly spiders, insects and other small invertebrates picked from bark crevices; in winter also some seeds and occasionally fat at feeders.
Behaviour
Forages by spiralling mouse-like up trunks and larger branches, bracing with its stiff tail, then flutters down to the base of the next tree. Generally solitary but joins mixed tit flocks in winter, and in severe cold several birds may roost huddled together. It nests behind loose bark or in tree cracks, laying five or six eggs.
Sources
Photo: Ekytza, CC BY-SA 4.0 https://commons.wikimedia.org/wiki/File:Обыкновенная пищуха (Certhia familiaris).jpg
Sound: Benjamin Mayer, CC BY-SA 4.0 https://commons.wikimedia.org/wiki/File:Certhia_familiaris_-_Eurasian_Treecreeper_XC528366.mp3
Sound: Jochem Verweij, XC910698, CC BY-SA 4.0 https://xeno-canto.org/910698
Text: Wikipedia (English) + FinBIF species descriptions + Wikipedia (Finnish) + GBIF regional observations + Wikipedia (Swedish), CC BY-SA 4.0; FinBIF: CC BY 4.0; Wikipedia: CC BY-SA 4.0; GBIF occurrence data; Wikipedia: CC BY-SA 4.0 https://en.wikipedia.org/wiki/Eurasian_treecreeper
