- Certhia familiaris
Identification
L. 12.5-14cm
This is a small, elongated bird, fairly drab in appearance, streaked brownish above and white below. It has long stiff tail feathers which help it creep up tree trunks like a mouse looking for insects. It has a long curved bill.
Similar Species
Very similar to Short-toed Treecreeper.
Distribution
Common and widespread in the British Isles and from east and south-east France east across Europe to the Urals. Isolated populations breeding in central and south-west France, the Pyrenees and Cantabrians, Corsica and the Apennines, in northern Turkey and the Caucasus. A partial migrant in north of range, occasionally eruptive, but mainly resident elsewhere.
Outside Europe found east to Siberia and China.
Vagrants recorded in the Faroes, Channel Islands and now annually in the Netherlands.
Taxonomy
This species has previously been considered to include American Treecreeper and Hodgson's Treecreeper.
Subspecies
There are 10 subspecies[1]:
- C. f. britannica: similar to macrodactyla but more buffish below
- Great Britain and Ireland
- C. f. macrodactyla: darker and more brownish above with flanks washed buff
- Western Europe to Oder River, Hungary and Yugoslavia
- C. f. corsa: Corsica
- C. f. familiaris: rather pale and grey, becoming more so towards the east.
- Scandinavia and eastern Europe to western Siberia
- C. f. daurica: Siberia to Sea of Okhotsk, northern Mongolia and north-eastern China
- C. f. orientalis: Amurland to north-eastern China, Kuril Island, Sakhalin, Hokkaido and Korea
- C. f. japonica: Japan (Honshu, Shikoku and Kyushu)
- C. f. persica: resembles nominate but darker and drabber above
- C. f. tianschanica: Tien Shan Mountains (Kazakstan) to north-western China
- C. f. bianchii: West-central China (eastern Qinghai, Gansu, Shaanxi and Shanxi)
Habitat
In areas where Short-toed Treecreeper also occurs this species tends to be confined to upland areas and often conifers. Elsewhere found in deciduous woodland, parks and large gardens. In parks often found on exotic redwood trees.
Behaviour
Will climb up a tree trunk looking for insects and spiders in the crevices of the bark and using its feet with a long hindclaw to cling onto the trunk. Once close to the top of one tree it will fly to the base of the next and then work its way up again; it will never go down the trunk or branch, or even for a short time sit with the head pointing down.
Breeding
The nest is concealed behind loose bark, in tree crevices or holes in walls. It is loosely built from grass, rootlets and bark fibres and lined with moss and wool. The 5 or 6 (sometimes more) white eggs have reddish-brown spots clustered at the large end. There may be a second clutch.
Diet
They eat mainly insects and spiders.
Vocalisation
References
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2014. The eBird/Clements checklist of birds of the world: Version 6.9., with updates to August 2014. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- The Observer's Book of Birds' Eggs ISBN 0723200602
Recommended Citation
- BirdForum Opus contributors. (2024) Eurasian Treecreeper. In: BirdForum, the forum for wild birds and birding. Retrieved 19 April 2024 from https://www.birdforum.net/opus/Eurasian_Treecreeper
External Links
GSearch checked for 2020 platform.1
