# Eurasian treecreeper (*Certhia familiaris*)

Canonical page: https://creaturedata.com/animals/eurasian-treecreeper  
Data as of: 2026-11-11

The Eurasian treecreeper (Certhia familiaris), also called the tree creeper, is a bird in the songbirds and other perching birds subgroup, belonging to the family Certhiidae in the order Passeriformes. It is a tiny bird with an adult body mass of 9 g, a body length of 12 to 13 cm and a wingspan of 19 cm. This sedentary, perching bird lives in forest habitat and is an invertivore whose main food is invertebrate. The Eurasian treecreeper is listed as Least Concern on the IUCN Red List, which is not a threatened category.

## Quick facts

| Fact | Value |
|---|---|
| Weight | 9 g |
| Length | 12 cm – 13 cm |
| Wingspan | 19 cm |
| Lifespan | 7.43 years |
| Diet | Invertivore |
| Longest recorded lifespan | 8.17 years |
| Main food | invertebrate |
| Habitat | forest |
| Egg incubation | 15 days |
| Young per litter or clutch | 4.2 – 5.45 |
| Age at maturity | 12 months |
| Litters or clutches a year | 1.5 |
| Reproduction | Eggs |
| Lifestyle | Perching |
| Migration | Sedentary |
| Conservation status | Least Concern (IUCN) |
| Countries on record | Not recorded |

## Classification

- kingdom: Animalia
- phylum: Chordata
- class: Aves
- order: Passeriformes
- family: Certhiidae
- genus: Certhia
- species: *Certhia familiaris* Linnaeus, 1758

Synonyms: *Certhia familiaris costa*, *Certhia familiaris gerbei*, *Certhia familiaris kwanhsienensis*, *Certhia familiaris pyrenaica*, *Certhia familiaris rhenana*, *Certhia familiaris waschanensis*, *Dendrobates familiaris*

## Common questions

### What kind of animal is the Eurasian treecreeper?

The Eurasian treecreeper is a bird in the songbirds and other perching birds subgroup. It belongs to the family Certhiidae and the order Passeriformes.

### How big is the Eurasian treecreeper?

The Eurasian treecreeper is a tiny bird weighing 9 g, with a body length of 12 to 13 cm and a wingspan of 19 cm.

### What does the Eurasian treecreeper eat?

The Eurasian treecreeper is an invertivore, and its main food is invertebrate.

### Is the Eurasian treecreeper endangered?

No. It is listed as Least Concern on the IUCN Red List, which is not a threatened category.

### How long does the Eurasian treecreeper live?

The Eurasian treecreeper has a lifespan of 7.4 years, with values up to 8.2 years reported by sources.

### How many eggs does the Eurasian treecreeper lay?

The Eurasian treecreeper lays 5.45 eggs per clutch and has 1.5 clutches per year. The eggs are incubated for 15 days.

### Who named the Eurasian treecreeper?

The Eurasian treecreeper was named Certhia familiaris by Linnaeus, 1758.

### Does the Eurasian treecreeper migrate?

No. The Eurasian treecreeper is sedentary and lives in forest habitat.

## Sources

- [An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles](https://doi.org/10.6084/m9.figshare.3563457.v1), CC0 1.0, E096-269. Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1
- [AVONET: morphological, ecological and geographical data for all birds](https://doi.org/10.6084/m9.figshare.16586228.v7), CC BY 4.0, v7. Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7
- [Catalogue of Life eXtended Release](https://www.checklistbank.org/dataset/316691), CC BY 4.0, 2026-10-16 XR. Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
- [Wikimedia Commons](https://commons.wikimedia.org), per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed), 2026-11-11. Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence).
- [Wikidata](https://www.wikidata.org), CC0 1.0, 2026-11-11. Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service).
- [Wikipedia (English)](https://en.wikipedia.org), CC BY-SA 4.0, 2026-11-11. Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).

Cite as: Eurasian treecreeper (Certhia familiaris). Retrieved from https://creaturedata.com/animals/eurasian-treecreeper