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| Mammals |
The serotine is one of the first bats to appear at night and can be seen around lamp posts chasing moths, or at treetop height. It likes to roost and hibernate in old buildings in the south of the UK.
Species information
Category
Statistics
Length: 5.8-8.0cm
Wingspan: 32-38cm
Weight: 15-35g
Average lifespan: up to 19 years
Conservation status
Protected in the UK under the Wildlife and Countryside Act, 1981. European Protected Species under Annex IV of the European Habitats Directive.
When to see
April to October
About
The serotine is one of our largest bat species and one of the first to appear in the evening, often when it is still fairly light. It flies at treetop height and around lamp posts, using echolocation to hunt for flies, moths and chafer beetles. Serotines tend to roost and hibernate in older buildings and chimneys, and are rarely found in trees. During summer, the females form maternity colonies and have a single pup.
How to identify
The serotine has long, dark brown fur and a pale yellowish-brown belly. The wings, nose and ears are dark brown or black. It has a distinctive flight pattern with a slow flapping motion and short glides, often making steep descents.
Distribution
A less common species in the UK, it is found south of a line drawn from South Wales across to the Wash.
Habitats
Did you know?
Serotines will eat large beetles on the wing, dropping the wingcases and legs as they go. They catch most of their food within about 2km of their roosts, and will often catch insects directly from vegetation or the ground.
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