
SPECIES
Tiny insect hunters
The common pipistrelle weighs about 5 grams, roughly a 20p coin, and a single one can eat thousands of tiny insects in one night.
See the numbersWHAT THE EXPERTS SAY
Almost a quarter of the UK's mammal species are bats.
Found a bat?
18 SPECIESall protected by law
They come out at dusk to hunt insects, roost in trees and buildings, and are protected by law. Here is what the Bat Conservation Trust, Natural England and JNCC say about living alongside them.
At a glance
18 species
Bat species found in the UK
The UK has 18 bat species, 17 of which are known to breed here. That is almost a quarter of the UK's mammal species.
SPECIES · BAT CONSERVATION TRUST
+55%
Change in the UK bat indicator, 1999 to 2023
JNCC's indicator, covering 11 of Great Britain's 17 breeding species, rose by 55 per cent between 1999 and 2023, after major declines before and during the 20th century.
POPULATIONS · JNCC
TWO NUMBERS WORTH KNOWING
One figure on how many kinds of bat live here,
one on how monitored populations have changed.
JNCC links the recovery to less disturbance after strict legal protection and a milder climate. The earlier declines were driven by persecution, farming intensification, loss of roosts and habitat, timber treatments and fewer insects to eat.
FOUND A BAT?
Pick what you have found. The bar shows how strongly the Bat Conservation Trust's advice points to containing the bat and getting help.
Wear gloves if you need to touch a bat, because of the small risk of rabies. The National Bat Helpline is 0345 1300 228, Monday to Friday, 9:30am to 4:30pm.
THE SHORT ANSWER
Bats need little from us.
Mostly: dark, insects, and roosts left alone.

SPECIES
The common pipistrelle weighs about 5 grams, roughly a 20p coin, and a single one can eat thousands of tiny insects in one night.
See the numbers
THE LAW
In England it is unlawful to deliberately capture, injure or kill bats or damage their breeding or resting places. Roof and loft work can affect roosts.
What the law says
HELPING
Pale, night-scented flowers attract insects after dark. The Bat Conservation Trust also suggests a pond, a compost heap and no chemicals.
How to help
FOUR WAYS TO HELP
The Bat Conservation Trust says gardens are playing a more important role in securing a future for bats. These ideas come from its gardening advice.
Choose pale, night-scented flowers and nectar-rich plants, and aim for something flowering from early spring to late autumn.
Build a pond, or a small water feature if there is no room for one.
Avoid bringing chemicals in, start a compost heap and leave a patch of grass uncut for insects.
Put up a bat box or a bat access tile, and keep cats indoors at night, when bats are leaving their roosts.
BATS AND THE LAW
In England it is unlawful to deliberately capture, injure or kill bats, damage their breeding or resting places, or possess or transport live or dead bats. Penalties include up to 6 months in prison and an unlimited fine.
Repairing a roof or converting a loft can harm bats, but in many cases work can be planned around them. The National Bat Helpline gives free advice on behalf of Natural England and can arrange a volunteer roost visit.

Questions
The Bat Conservation Trust says the UK has 18 bat species, 17 of which are known to breed here. That is almost a quarter of the UK's mammal species.
Yes. In England it is unlawful to deliberately capture, injure or kill bats or damage their breeding or resting places. Offences can lead to up to 6 months in prison and an unlimited fine.
Wearing gloves, contain it in a shoe box with holes in the lid, a soft cloth and a few drops of water in a milk bottle top. Keep it somewhere quiet and dark and call the National Bat Helpline on 0345 1300 228. Do not release it without advice.
The Bat Conservation Trust says there is a small risk of rabies from bat bites and scratches in the UK, which is why it says to wear gloves. If you are bitten or scratched, seek immediate medical advice.
Roof repairs and loft conversions can harm bats, but GOV.UK says work can often be planned around them, usually after a bat survey. The National Bat Helpline gives free advice on behalf of Natural England.
Sources
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