What bats do you have and
how can you help them
• About British bats
• What bats you have – including rarities
• Projects of interest • What we can all do for all bats
UK bat species
Horseshoe family
- Horseshoes
- Greater horseshoe
British bats
Lesser horseshoe
- Myotis bats
- Alcathoe bat
Bechstein’s bat Brandt’s bat Daubenton’s bat Natterer’s bat
Whiskered
- Big bats
- Noctule
Vesper family
- evening bats
or common bat
Leisler’s bat
Serotine
- Pipistrelles
- Common pipistrelle
(Pipistrellus)
Soprano pipistrelle
Nathusius’ pipistrelle
- Brown long-eared bat
- Long-eareds
(Plecotus)
© Ash Murray
© Ash Murray
Grey long-eared bat Barbastelle
17 species of bats
breed in the UK
Unique in their power of flight
Where bats live
Bats use different roosts at different times of the year
Bats often roost in buildings and other built structures
Some bats only roost in trees Some bats will also roost in
bat boxes
Bat habitats: roosts
Where bats feed
Bats need good foraging habitat near to where they roost
Good foraging habitats are those that support insects (and
a range of other biodiversity)
Bats will feed over water, woodland, marshy areas, hedgerows, grazed and semi-improved grassland
Connectivity and unlit green infrastructure is important
Bat habitats: foraging
• Suitable feeding areas close to roost sites
• Good variety and
number of insects
• Sheltered areas where insects can be caught more easily
Bat habitats: linkages
• Linear features such as hedgerows and
other flight-line features
• Vital for bats to navigate from roost to feeding area
How do they hunt in the dark?
Bats hunt insects in flight in the dark using sound
Bats calls are above our hearing range, bat detectors to
listen to their calls
Pipistrelle can eat over 3,000 midges in one night Noctules eat larger insects such as beetles and cockchafers
Eavesdropping on bats
Devon’s bats
© Hugh Clark
The grey long-eared bat – what
are we doing in Devon
Grey long-eared bats roost
locations
- Working with local communities
- Bats in Churches
HLF development stage approval
The project will:
• trial and perfect new techniques to enable bats and church congregations to live together
• build up professional expertise and volunteer
skill to share the best solutions with more churches and other historic buildings
• bring together church communities, bat enthusiasts and local communities to create a shared understanding and appreciation of churches and bats
• run a new national survey to find out how bats use churches across England and create a database to share information with all key stakeholders
Count Bat
What we can all do for bats
Go out and listen!
• Go out at dusk and listen for bats on a detector
• Watch bats emerge from a known roost • Look out for other signs of bats
Bats you might see in Devon
Daubenton’s
bat
Brown longeared bat
Pipistrelles
Noctule
- Largest bat
- Medium bat
- Smallest bat
- Medium bat
- Wingspan 32-45cm
- Wingspan 23-27cm
- Wingspan 18-24cm
- Wingspan 24-28cm
- Emerges at sunset
- Emerges 30-60mins
after sunset
Emerges 15-20mins after sunset
Emerges after dark Slow fluttering flight
Long thin wings, flies Flies low over water straight, high and fast
Fast turning flight has large hairy feet
Rarer bats you might see around
here
• Greater and lesser horseshoe bats
National Bat Monitoring
Programme since 1996
How do we monitor bats?
• Counts at roosts
• Activity surveys using bat detectors
Summer Roost Counts
Winter Hibernation Survey
Field Survey
Waterway Survey
NBMP
Bat boxes
• Put up a bat box
. important because bats losing natural roosts
• Lots of different designs • Place as high as convenient and in direct sunlight for part of the day
• Three boxes can be put up on one
tree – N, SE, SW
• Readily available to buy or can make your own!
Gardening for bats
• Plants attract insects; insects attract bats! • Choose the right plants e.g. night-scented, pale
• Wet area or pond
• Avoid chemicals
Bat Care
Devon Bat Group & BCT