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  3. Serotine

One of the 29 bats on WAnimals

Mammals · Chiroptera · Vespertilionidae

Serotine

Eptesicus serotinus

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

Its name comes from the Latin serotinus, "of the evening" or "late", after its habit of emerging at dusk. It is one of Europe's main reservoirs of European bat lyssavirus type 1.

Weight

15 g – 35 g

Size

5.8 cm – 8 cm

Life expectancy

8 years

Diet

Insectivore

Feeds mainly on insects and other invertebrates.

Activity

Nocturnal

Active mainly at night.

Social structure

Colony

Lives in large concentrations, often for breeding reasons.

Sighting difficulty

Easy

Temperate forestGrassland
47countries76parks14same family

Fun facts

  • Its name means "of the evening" in Latin, after its habit of emerging early at dusk.
  • It roosts mainly in old buildings around farmland and villages.
  • It can live for years exposed to EBLV-1 lyssavirus without necessarily falling ill.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Farmland, parks, villages and woodland edges across much of temperate Eurasia, roosting mainly in old buildings
Birth weight
Exact weight at birth not found as a precise figure
Size at birth
The young naked at birth, clinging to its mother for the first few days
Sexual maturity
Not precisely known (its breeding biology is poorly documented)
Gestation / incubation
Duration not specified as a precise figure
Litter / clutch size
1 young per litter (almost always a single)

Sources consulted: The Wildlife Trusts; First-Nature; Green Cross Nature; Woodland Trust; iNaturalist; PMC (EBLV-1 maternity colonies survival study); Wikipedia (Serotine bat)

Where to find it

Best time: From April to October, just at dusk; it is one of the first bats out and often hunts around street lamps.

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Where to see it

Parks and dive sites where this species has been documented — showing 10 of 76.

Related species

Other species in the catalogue with the most in common with Serotine — same habitat, park, country, tags or family.

Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family

Keep exploring

Based on what we already know about serotine.

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See full glossary
This page in other languages: Español · Deutsch · Français · Português · Italiano

The pins mark the parks where its presence is documented.

See its range on the interactive map→
Lake DistrictUnited Kingdom
KillarneyIreland
EcrinsFrance
TriglavSlovenia
Picos de EuropaSpain
Ordesa y Monte PerdidoSpain
Aiguestortes i Estany de Sant MauriciSpain
Peneda-GeresPortugal
CévennesFrance
PlitviceCroatia
See all 76 parks
Least Concern

Greater Mouse-eared Bat

Myotis myotis

Least Concern

Common Pipistrelle

Pipistrellus pipistrellus

Least Concern

Common Noctule

Nyctalus noctula

Natterer's BatLeast Concern

Natterer's Bat

Myotis nattereri

Giant NoctuleVulnerable

Giant Noctule

Nyctalus lasiopterus

Grey Long-Eared BatNear Threatened

Grey Long-Eared Bat

Plecotus austriacus

CountriesSpain
ParksLake DistrictUnited Kingdom
TagsInsectivore
Insectivore
Nocturnal
Colonial
Temperate forest
Grassland
Mammal

Europe41

Asia6

Spain
Germany
France
Poland
United Kingdom
Austria
Albania
Andorra
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Belarus
Belgium
Bosnia and Herzegovina
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Denmark
Estonia
Finland
France
Germany
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Hungary
Ireland
Italy
Kosovo
Latvia
Liechtenstein
Lithuania
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Moldova
Montenegro
Netherlands
North Macedonia
Norway
Poland
Portugal
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San Marino
Serbia
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Spain
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Armenia
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