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Treecreeper
Treecreepers · Resident

Treecreeper

Eurasian Treecreeper · Certhia familiaris

Least Concern12–14 cm · 7–12 g

By the Birdfact teamChecked byNathan Cope

With its spiraling foraging pattern and bark-like camouflage, this tiny woodland acrobat is a master of vertical tree climbing.
On this page14 sections
  1. How to recognise it
  2. Its size
  3. Its song and calls
  4. When and where to see it
  5. What it eats
  6. Nesting and breeding
  7. Behaviour
  8. Lifespan and predators
  9. Conservation
  10. What does a Treecreeper look like?
  11. Similar birds
  12. More photos
  13. Quick facts
  14. Sources

How to recognise it

The Treecreeper is a small, slim bird with mottled brown upperparts and white underparts.

Its long, curved bill is perfectly adapted for probing bark crevices, and its stiff tail feathers provide support while climbing. The feet are large, brownish-pink with long curved toes, which they use in gripping onto trees.

Both sexes look similar, with juveniles resembling adults but showing slightly more spotted plumage. There are no significant seasonal changes in appearance.

Its size

Adults
Length
12–14 cm
Wingspan
17–21 cm
Weight
7–12 g

Its song and calls

The treecreepers call is a long quiet and high pitched trill of ‘srreee’ which lowers in pitch at the end of each tweet.

When and where to see it

UK and Ireland

OctoberHere all year

Arriving in 13 placesLast month in 8 places

Most recorded in October

  1. 1. West Dunbartonshire1.4%
  2. 2. Stirling1.1%
  3. 3. Rhondda, Cynon, Taff1.1%
  4. 4. Neath Port Talbot1.1%
  5. 5. Perthshire and Kinross0.88%

Each dot is a county, state or province: the bigger and darker, the larger the bird’s share of that place’s bird records that month. Grey dots: no regular records. The ringed point is the centre of the bird’s records this month; the arrow shows how it moved since last month, and the dashed loop its path through the year. “Arrivals” colours places where it becomes regular this month (orange) or is in its last regular month (grey). GBIF eBird Observation Dataset, 2019–2024. Map data: Natural Earth, US Census Bureau; place centres © OpenStreetMap contributors.

In your area

See when the Treecreeper is recorded in your county, state or province.

or

How often the Treecreeper turns up in the UK and Ireland through the year, from birdwatchers' records.

United Kingdom

Resident · all year · most records in February

Ireland

Resident · all year · most records in June

Regularly recordedOccasionalBar height: share of all bird records that month
Show as a table
MonthUnited KingdomIreland
January0.32% (regular)0.23% (regular)
February0.34% (regular)0.22% (regular)
March0.33% (regular)0.24% (regular)
April0.26% (regular)0.26% (regular)
May0.23% (regular)0.26% (regular)
June0.26% (regular)0.28% (regular)
July0.29% (regular)0.28% (regular)
August0.26% (regular)0.18% (regular)
September0.23% (regular)0.16% (regular)
October0.23% (regular)0.16% (regular)
November0.27% (regular)0.19% (regular)
December0.31% (regular)0.21% (regular)

Worldwide: recorded regularly in 53 countries

Countries where it was recorded in at least 3 of the 6 years 2019–2024. Linked countries have their own bird list.

Treecreepers are UK residents and can be found across the kingdom apart from the northern isles of Scotland. They are solitary birds in the main who prefer deciduous woodland but are also found in conifer forests and occasionally wooded gardens. During the autumn and winter months they are often seen on the periphery of tit flocks.

Signs and Spotting tips

Their camouflage can make these active little birds difficult to spot although once seen they are easy to identify. In size they resemble a small tit or wren but their slender bills coupled with their particularly long curved toes are a give away. Unlike the Nuthatch which is also a tree feeder, the treecreeper is not able to turn around on a tree and venture back down again head first. It is therefore forced to fly to the next tree or the ground. It is able to walk backwards down the tree but is inhibited in doing so by its tail. They generally start their foraging at the base of a tree and circle around the trunk walking upwards as they do so. Once at the top of the tree or when they want to move on to the next they simply take to the wing.

What it eats

The treecreepers home is also its kitchen! Its long thin pointed bill is used to wheedle out larvae, insects and spiders living in the tree bark and it is a very effective tool. In the winter they will also feed on seeds.

Treecreeper portrait
Treecreeper portrait

Nesting and breeding

Treecreepers build their nests under protruding bark or behind ivy on the trunk of a tree. One clutch is laid annually between April to June and normally consists of 5 or 6 white coloured eggs which are speckled reddish-brown.

Behaviour

Treecreepers exhibit a distinctive spiralling movement as they climb up tree trunks, searching for insects. They typically start at the base of a tree and work their way up, then fly down to the base of another tree to repeat the process.

These birds are generally solitary but may join mixed-species flocks in winter.

Lifespan and predators

The lifespan of a treecreeper is two to three years.

Conservation

While the Treecreeper is currently listed as Least Concern, it faces threats from habitat loss due to deforestation and the removal of old, mature trees. Climate change may also impact its distribution and food availability.

Conservation efforts focus on preserving mature woodlands and promoting sustainable forestry practices.

What does a Treecreeper look like?

These tiny attractive birds spend most of their lives on trees and are superbly camouflaged to blend in with their surroundings. Their main colouring is mottled browns and black on their back and head and with mainly white underparts. The have a long pale brown notched tail and a white stripe over each eye. The rounded wings are predominantly black with a pale almost white wing bar. In relation to this small bird’s overall size they have a long, thin, downward curving, black beak and large slender brown and pink feet with long curved toes, which they use in gripping on to trees. When climbing up the bark of vertical tree trunks they use their stiff tail to assist them with balance and as an extra support against the tree. Male and female adults are similar and juveniles duller in colour with less obvious colour markings.

Close up of a Treecreeper
Close up of a Treecreeper

Similar birds

Often mistaken for

More photos

2 photos

Quick facts

Length
12–14 cm
Wingspan
17–21 cm
Weight
7–12 g
Lifespan
2–3 years · oldest recorded 8.6 years
Migration
Resident
Global status (IUCN)
Least Concern
World population
40,000,000 - 76,000,000 mature individuals
Population trend
Stable
Also called
Eurasian Treecreeper
Scientific name
Certhia familiaris

Sources

4
  1. 1BirdLife International. 2017. Certhia familiaris (amended version of 2016 assessment). The IUCN Red List of Threatened Species 2017: e.T22735060A111155023. Source (opens in a new tab)
  2. 2EBCC (2015)
  3. 3BirdLife International. 2017. Certhia familiaris (amended version of 2016 assessment). The IUCN Red List of Threatened Species 2017: e.T22735060A111155023. Source (opens in a new tab)
  4. 4BTO longevity records: maximum age from a ringed bird, 8 years, 8 months, 7 days (set in 2017), BirdFacts: Treecreeper (2017) Source (opens in a new tab)
Spotted a mistake?Tell usHow we write and checkBy the Birdfact team · Updated

Checked by

Nathan Cope, founder and editor

Nathan founded Birdfact and leads its writers and contributors in the UK, the US and Canada. He has watched and studied birds for more than ten years, and checks every article and species guide before it’s published.

How we write and checkAbout Nathan