No.027 · Birds · Common
Nuthatch
Sitta europaea
A blue-grey, black-masked bird that runs down tree trunks head first. It plasters its nest hole with mud to make the entrance just the right size.
When to look
All year, mostly at dawn and day.
- J
- F
- M
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- J
- J
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- D
Time of day
- Dawn
- Day
- Dusk
- Night
- Best time
- Morning, all year. It calls loudly in early spring; look on oak and beech trunks.
- Where in the game
- the New Forest (ancient woodland)
- Size
- Length 14 cm
- Wingspan
- About 24 cm
- Weight
- About 22 g (BTO average)
- Lifespan
- Up to 11 years on record (BTO ringing)
- Population
- About 250,000 territories in the UK (BTO, 2016); up 280% 1967–2024
- Status
- Green (Birds of Conservation Concern 5, 2021)
Diet
Insects and spiders in summer; hazelnuts, beech mast and acorns in autumn and winter, wedged in bark and hammered open.
Habitat
Mature broadleaved woodland, especially oak and beech, and parkland with old trees.
Breeding
Nests in a hole in a tree (or nestbox) from April, the entrance narrowed with mud; typically 6–8 eggs, usually one brood.
Field signs
- Loud, ringing 'twit-twit-twit' or 'chwit' calls
- Mud-plastered rim to a nest hole
- Nuts wedged in bark crevices
- A bird descending a trunk head-first
Did you know?
- Most tree-climbing birds, such as woodpeckers and treecreepers, climb upwards; the nuthatch also walks head-first down trunks.
- The nuthatch plasters mud around its nest entrance to shrink it to exactly its own width, keeping larger birds out.
- It has spread north across Britain since the 1970s (BTO) but is still scarce in northern Scotland.
Moments worth waiting for
- Head-first descent
A nuthatch spirals down the beech trunk, head first, tapping a nut into a crack. - Plastering the nest hole
A pair carries beakfuls of mud to a tree hole, shrinking the entrance to fit.
Photo tip
Sit near an oak or beech with a good spread of old trunks, or use a garden feeder in winter. A 400 mm lens from a low position works; use burst mode as it never stays still.
Be a good naturalist
A nest hole is protected while in use. Keep at least 20–30 m from the nest tree and never scrape or enlarge the entrance. Do not use playback of calls.
The law
Protected under the Wildlife and Countryside Act 1981.