Mammals

Lesser horseshoe bat

Rhinolophus hipposideros

The lesser horseshoe bat is a tiny European bat with a distinctive horseshoe-shaped noseleaf, which wraps itself in its wings to rest.

Characteristics

Scientific nameRhinolophus hipposideros
Weight4–10 g
LifespanFino a 20 anni
SizeBody about 4 cm, wingspan up to 25 cm
Energy3/5

Temperament

Nocturnal, delicate, sensitive to disturbance

Diet

Insectivore: small insects caught in flight

Description

The lesser horseshoe bat is one of the smallest bats in Europe, the smallest of its genus. Its body is only about 4 centimetres long, with a wingspan of up to 25 centimetres. Its most distinctive feature is the complex skin outgrowth around the nose, the 'noseleaf', shaped like a horseshoe, which serves to direct the ultrasound of its echolocation. Its fur is grey-brown above and paler below. At rest it wraps itself completely in its wings, as in a little cloak.

Habitat and distribution

It is widespread across much of Europe, North Africa and western Asia. It favours varied landscapes with woods, hedgerows and watercourses, and hibernates in caves, cellars and damp underground sites. In summer the breeding colonies settle in warm attics and quiet buildings.

Behaviour

It is an insectivorous bat that hunts at dusk and by night, catching small insects on the wing, often near vegetation. To navigate and locate prey it emits ultrasound through its nose, not through the mouth like many other bats. It hibernates during the winter.

Did you know?

Its habit of wrapping itself completely in its wings while resting makes it unmistakable. Despite its tiny size, it can live surprisingly long. It is very sensitive to disturbance of its roosts.

Conservation

It is classed as least concern, but is protected throughout Europe and has suffered sharp declines in many areas. The main threats are disturbance of roost sites, building renovation and the loss of insects due to pesticides.

Pros

  • Valuable natural controller of small insects
  • Refined echolocation through the noseleaf
  • Long-lived, can reach twenty years

Cons

  • Very sensitive to disturbance of roosts
  • Threatened by insect decline from pesticides
  • Protected species: must not be disturbed

FAQ

Why is it called a horseshoe bat?
The name comes from the noseleaf, a skin outgrowth around the nose shaped like a horseshoe. It serves to shape and direct the ultrasound the bat emits to navigate and echolocate prey.
Is it true it wraps itself in its wings?
Yes. Unlike many other bats, at rest it wraps itself completely in its membranous wings, as in a little cloak. It is one of its most recognisable traits.
Is it dangerous to find one in the house?
No. It is a harmless and useful animal that feeds only on insects. In Europe it is protected: it should not be disturbed or removed, and an expert can be consulted for peaceful coexistence.
Where does it spend the winter?
It hibernates in damp places with a stable temperature, such as caves, cellars and underground sites. During hibernation it greatly lowers its metabolism to save energy.

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