Birds

Great grey shrike

Lanius excubitor

The great grey shrike is a grey, black and white predatory songbird, famous for impaling its prey on thorns like a larder.

Characteristics

Scientific nameLanius excubitor
Weight60–70 g
LifespanFino a 10 anni
SizeLength 22–26 cm, wingspan 30–36 cm
Energy4/5

Temperament

Predatory, territorial, watchful

Diet

Insects, small mammals, lizards and birds

Description

The great grey shrike is the largest of the European predatory songbirds of the shrike family. It has elegant plumage: pearly grey above, white below, with black wings and tail and a distinctive black mask running through the eye. Its bill is stout and hooked at the tip, a typical adaptation of a hunter. Males and females look very much alike.

Habitat and distribution

It breeds in the northern and temperate regions of Eurasia, in open habitats such as heaths, clearings, pastures and farmland with hedges and scattered trees. Many populations are migratory or wintering: in winter the shrike moves further south, where it is often seen perched atop bushes and fence posts.

Behaviour

Although a songbird, it hunts like a small raptor. It feeds on large insects, small mammals, lizards and birds, which it spots from its perch and seizes with a swift attack. Its most famous habit is impaling prey on thorns, sharp twigs or barbed wire, creating a larder it returns to later.

Did you know?

The scientific name excubitor means "sentinel", for its habit of watching over its territory from conspicuous perches. The impaled larders serve both to store food and, in males, to display during courtship.

Conservation

It is classed as least concern globally, but in many parts of western Europe populations are declining, owing to the loss of traditional farmed landscapes with hedges and insect-rich meadows.

(Note: the mass value given by Wikidata, 63.4 kg, is clearly wrong: the great grey shrike actually weighs about 60–70 grams.)

Pros

  • Useful predator regulating insects and rodents
  • Fascinating behaviour, easy to observe
  • Conspicuous when perched atop hedges

Cons

  • Declining through loss of farmed landscapes
  • Needs open habitats with perches and prey
  • Sensitive to pesticides that reduce insects

FAQ

Why does it impale its prey on thorns?
The shrike uses thorns, sharp twigs or barbed wire as a "larder": it impales insects and small prey to store them and eat them later. Its bill is not strong enough to hold the food while feeding, so it fixes it in place this way.
Is it a bird of prey?
No, it is a songbird, a passerine. Yet it hunts like a small raptor, with a hooked bill and predatory habits, which in some languages earned it names like "butcher bird".
Where can it be seen?
In winter it is often seen in open countryside, perched conspicuously atop bushes, posts or wires, scanning the ground for prey. It watches over its territory from elevated perches.
What does it eat?
It has a varied diet: large insects, small mammals such as voles, lizards and small birds. The mix changes with the seasons, with more insects in summer and more vertebrates in winter.

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