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Eurasian Treecreeper Certhia familiaris
BirdLife is updating this factsheet for the 2016 Red List
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This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be fluctuating, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Taxonomic source(s)
Tietze, D. T.; Martens, J.; Yue-Hua Sun. 2006. Molecular phylogeny of treecreepers (Certhia) detects hidden diversity. Ibis 148(3): 477-488.

Taxonomic note
Certhia familiaris (Sibley and Monroe 1990, 1993) has been split into C. familiaris and C. hodgsoni following Tietze et al. (2006).

Population justification
In Europe, the breeding population is estimated to number 5700000-11000000 breeding pairs, equating to 17100000-33000000 individuals (BirdLife International 2004). Europe forms 25-49% of the global range, so a very preliminary estimate of the global population size is 34900000-132000000 individuals, although further validation of this estimate is needed.

Trend justification
The population is suspected to be fluctuating owing to fluctuations in food availability (Harrap and Quinn 1996), although in Europe, trends since 1980 have been stable, based on provisional data for 21 countries from the Pan-European Common Bird Monitoring Scheme (EBCC/RSPB/BirdLife/Statistics Netherlands; P. Vorisek in litt. 2008).

Further web sources of information
Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Ekstrom, J., Butchart, S.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2016) Species factsheet: Certhia familiaris. Downloaded from on 26/10/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from on 26/10/2016.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Additional resources for this species

ARKive species - Eurasian treecreeper (Certhia familiaris) 0

Key facts
Current IUCN Red List category Least Concern
Family Certhiidae (Treecreepers)
Species name author Linnaeus, 1758
Population size 35000000-150000000 mature individuals
Population trend Stable
Distribution size (breeding/resident) 20,500,000 km2
Country endemic? No
Links to further information
- Additional Information on this species
- 2015 European Red List assessment