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#0143 · 🦊 mammals

Lesser Noctule

🇳🇱 Bosvleermuis ·Nyctalus leisleri

LCleast concern 🦊 Mammals 📍 in Europe, not in NL
Lesser Noctule, photo 1 of 10
1/10 © Yuzefovich Alexander · CC BY-NC 4.0

what is it?

The lesser noctule or Leisler's bat ( Nyctalus leisleri ) is a species of bat belonging to the vesper bat family, Vespertilionidae.

base stats

  • NL sightings 0iNaturalist, research grade
  • worldwide 1,175iNaturalist observations
  • threat LCleast concern

Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).

fun facts

  • No confirmed wild sightings in the Netherlands on iNaturalist: you'd have to travel for this one.
  • 1,175 observations worldwide on iNaturalist.
  • Scientifically named by Heinrich Kuhl in 1817 (209 years ago).

fact sheet

English
Lesser Noctule
Nederlands
Bosvleermuis
scientific name
Nyctalus leisleri
class
Mammalia
order
Chiroptera
family
Vespertilionidae
IUCN Red List
LC · least concern
sightings in NL
0
sightings in Europe
389
sightings worldwide
1,175
GBIF records in NL
268
weight
—
length
—
lifespan
—
named
1817 by Heinrich Kuhl

IUCN in Dutch: niet bedreigd. Blank means the sources don't say.

relatives· Vespertilionidae

Sources: iNaturalist taxon 40573, Wikidata Q287105, GBIF 5218522, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

stan runge 23a4304 source