Greater noctule bat

Nyctalus lasiopterus (Schreber, 1780)
Vespertilionidae

Vulnerable

Other names
CatalanNòctul gegant
SpanishNóctulo grande
EnglishGreater noctule bat
FrenchGrande Noctule
BasqueGau-saguzar handiaren
GalicianNóctulo grande

Description

The largest bat in Europe, with a total head and body length ranging from 78 to 104 mm, a forearm of 60 to 70 mm, a wingspan of 410 to 460 mm, a tail of 55 to 66 mm, and a weight ranging from 35 to 60 g. It is very robust and large, with a broad muzzle, a large head, and relatively short (21 to 26 mm), rounded ears. Like other noctules, the tragus is short and wide, kidney or mushroom-shaped. The skin is dark brown, and the fur is dense, relatively long, and unicoloured, with the back being reddish-brown or dark brown and the belly only slightly lighter. Males can raise the hair behind the nape like a kind of mane. The wings are very long and narrow, and the inner wing is quite hairy between the body and the fifth digit and up to the elbow.

Unmistakable due to its size.

Il·lustració de Toni Llobet extreta de l'obra Els ratpenats de Catalunya (BRAU Edicions, 2012).

Fotografies

Fotografies d'Oriol Massana Valeriano i Adrià López-Baucells (www.adriabaucells.com).


Trends

General trend Strong increase
ProtocolChiroHabitats
Geographic scopeCatalonia
Number of localities studied95
Annual change19.6 %
MethodTRIM
Analysis execution date01/09/2024

General trend Stable
ProtocolChiroRivers
Geographic scopeCatalonia
Number of localities studied52
Annual change-0.2 %
MethodTRIM
Analysis execution date01/09/2024

General trend Moderate increase
ProtocolChiroRoosts
PeriodHibernation
Geographic scopeCatalonia
Number of localities studied21
Annual change8.4 %
MethodTRIM
Analysis execution date01/09/2024

General trend Moderate increase
ProtocolChiroRoosts
PeriodMigration
Geographic scopeCatalonia
Number of localities studied26
Annual change10.8 %
MethodTRIM
Analysis execution date01/09/2024

General trend Stable
ProtocolChiroRoosts
PeriodReproduction
Geographic scopeCatalonia
Number of localities studied12
Annual change1.8 %
MethodTRIM
Analysis execution date01/09/2024

In progress...