Birds

Eurasian nuthatch

Sitta europaea

The Eurasian nuthatch is a blue-grey acrobatic bird, the only one able to climb down tree trunks headfirst.

Characteristics

Scientific nameSitta europaea
Weight17–28 g
LifespanFino a 10 anni
SizeLength about 14 cm, wingspan 22–27 cm
Energy4/5

Temperament

Acrobatic, lively, territorial

Diet

Insects, spiders, seeds and nuts

Description

The Eurasian nuthatch is a small, stocky passerine with a short tail and a long, pointed bill. It has blue-grey upperparts, whitish or buff underparts depending on the region, and a clear black stripe through the eye. Despite the name, it is not a true woodpecker, but belongs to the nuthatch family.

Habitat and distribution

It occurs across much of Eurasia, in mature broadleaf and mixed woodland, parks and gardens with old trees. It is a sedentary, territorial bird, tied all year to its own wood, provided there are trees with cavities suitable for nesting.

Behaviour

It is a remarkable acrobat: it climbs nimbly over trunks in all directions and is the only European bird able to descend the bark headfirst. It feeds on insects, spiders and, in autumn and winter, on seeds and nuts, which it wedges into bark crevices and hammers open with its bill. Hence the name "nuthatch", from "nut-hacker".

Did you know?

Its behaviour of plastering the entrance of its nest cavity with mud, to shrink it to its own size and keep out larger intruders, is famous. It also hides food stores for the winter.

Conservation

It is classed as least concern. It depends on mature woodland with hollow trees; forestry that retains old and dead trees is particularly favourable to it.

(Note: the mass value given by Wikidata, 2.25 kg, is clearly wrong: the nuthatch actually weighs about 17–28 grams.)

Pros

  • The only European bird to climb down headfirst
  • Sedentary, present all year in gardens
  • Easy to attract with seeds and nest boxes

Cons

  • Depends on mature woodland with hollow trees
  • Territorial, vigorously defends its area
  • Sensitive to the removal of old trees

FAQ

Why does it climb down trunks headfirst?
It is the only European bird able to do so, thanks to sturdy legs and powerful claws. This technique lets it find insects hidden in the bark that other birds, climbing upwards, miss.
Is it a true woodpecker?
No. Despite the name, it does not belong to the woodpecker family, but to the nuthatches. It shares the woodpeckers' habit of climbing trunks, but does not chisel wood to nest.
Why is it linked to masonry in some languages?
Because it shrinks the entrance of its nest cavity with mud, fitting it to its own size. This "bricklaying" work keeps out larger predators and competitors.
How can I attract it to the garden?
It readily visits feeders with seeds and nuts, especially in winter. Offering food and putting up nest boxes with a suitable hole can encourage it to stay all year.

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