
Serotine Bat
Eptesicus serotinus
# Serotine Bat (Eptesicus serotinus) The Serotine Bat is a large European bat species with a wingspan reaching 35-38 cm and distinctive golden-brown fur. These nocturnal mammals emerge late in the evening to hunt beetles, moths, and other flying insects using echolocation.
65
Countries
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Serotine_bat
Taxonomy & Classification
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Chiroptera
Family
Vespertilionidae
Genus
Eptesicus
Serotine Bat belongs to the family Vespertilionidae, order Chiroptera, within the Mammalia class.
Species Profile
# Serotine Bat (Eptesicus serotinus) The Serotine Bat is a large European bat species with a wingspan reaching 35-38 cm and distinctive golden-brown fur. These nocturnal mammals emerge late in the evening to hunt beetles, moths, and other flying insects using echolocation. As aerial insectivores, they provide significant pest control services, consuming thousands of insects nightly and helping maintain ecological balance in agricultural and urban environments. Serotine Bats inhabit an exceptionally broad range spanning Europe, Asia, and parts of Africa, from the United Kingdom to South Korea and extending south to South Africa. They demonstrate remarkable habitat adaptability, roosting in buildings, tree cavities, and rock crevices across diverse terrestrial environments including woodlands, farmland, parks, and urban areas. Despite their wide distribution, Serotine Bats face mounting pressures from habitat fragmentation and building renovations that destroy roost sites. Intensive agriculture reduces insect prey availability, while artificial lighting disrupts their nocturnal foraging patterns. Climate change may be altering insect emergence timing, potentially creating mismatches with bat breeding cycles. Wind turbines pose collision risks in some regions. Conservation efforts focus on protecting known roost sites through building surveys and legal protections. Several European countries have implemented bat-friendly building guidelines and created wildlife corridors to connect fragmented habitats. Monitoring programs track population trends, though comprehensive data remains limited across much of their range. The species' current trajectory remains uncertain due to insufficient population data. While their adaptability to human-modified landscapes provides some resilience, continued habitat loss and emerging threats suggest ongoing vulnerability without sustained conservation intervention.
The Serotine Bat faces significant population declines primarily due to habitat loss from agricultural intensification and urban development, which reduces both roosting sites and insect prey availability. Additional pressures include building renovations that destroy roost sites, pesticide use that depletes food sources, and climate change affecting insect populations and hibernation patterns.
Key Facts
Habitat & Distribution
Threats
Habitat loss from agricultural intensification
Loss of roosting sites due to building renovation and demolition
Climate change affecting prey populations and hibernation
Pesticide use reducing insect prey availability
Urban development and infrastructure expansion
Found in 65 Countries
National vs Global Threat Status
How this species is assessed at the national level compared to its IUCN global status (VU).
| Country | National Status | Global Status | Comparison |
|---|---|---|---|
| EU | LCLeast Concern | VUVulnerable | Lower local risk |
| EU | LCLeast Concern | VUVulnerable | Lower local risk |
National Red List data sourced from the National Red List Project (nationalredlist.org, ZSL) and country-specific Red List authorities.
Community Sightings
Report a sightingNo community sightings yet. Be the first to report!
Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
National Red Lists: ZSL (2025). National Red List. Zoological Society of London. Available at: https://www.nationalredlist.org
This page: SpeciesRadar (2025). Serotine Bat (Eptesicus serotinus). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/serotine-bat