Bats in Berks and South Bucks

There are 18 species of bats in the UK, 14 of which have been recorded in Berks and South Bucks.  Most of the records have been recorded by group members in recent years. Some records are older with some dating back 100 years, although many of these older records give insufficient information to be of use today.  The table below gives an indication of which species have been recorded in the county. 
 
Through our Bat Atlas project and our general activities we aim to collect many more records for the county.  If you would like to help out please se our Projects page.  If you have a record to submit please contact us through the Submit a Bat Record Page.  Finally if you would like to request a data search please visit our Data Requests page.

If you wish to reference the information below please use the following: Andrews. C (2013). Bats in Berkshire and South Buckinghamshire [Online]. Berkshire and South Buckinghamshire bat Group. Available at: http://www.berksbats.org.uk/bats-in-berks-and-south-bucks [Accessed: Date].
 

 

Species

 

Status in Berkshire and South Buckinghamshire

Status in UK

 

 

Alcathoe (Myotis Alcathoe)

Not Recorded (however may have been recorded as small myotis)

Its presence at sites 350 km apart suggests that Alcathoe is a well-established, resident species. Preliminary evidence suggests that it makes up a significant proportion of the small Myotis bats at both the Yorkshire and Sussex sites.

Greater mouse-eared bat (Myotis myotis)

Not recorded

Unconfirmed

 

 

Nathusius’ pipistrelle (Pipistrellus nathusii)

Injured individual bat rehabilitated and released in 1995ish

 

Bats recorded in bat boxes in east of county is the only recorded roost.

 

A total of 8 records with none in south bucks.

Rare

Grey long-eared bat (Plecotus austriacus)

Two skeletons discovered in a blocked up cave system around 1995 where confirmed to be those of grey long eared bat. Age of skeletons was unknown.

 

Very rare and at northern edge of range. This bat is considered to be one of the UK's rarest species.

 

Bechstein’s bat (Myotis bechsteinii) 

Not recorded - recorded in neighbouring counties in 2010 during NBMP but no surveys undertaken in Berks or South Bucks.

Very Rare

 

Only one maternity roost and less than 20 hibernation roosts are currently known in the UK with almost all records being of isolated individuals.

Greater Horseshoe Bat (Rhinolophus ferrumequinum)

Single record in flight in 2012 and three records from consecutive years of a hibernating bat on the Berkshire Buckinghamshire border.

 

Very rare and endangered

 

There are currently 35 recognised maternity and all-year roosts and 369 hibernation sites.

Barbastelle (Barbastella barbastellus)

Single individual recorded in hibernation in 2011.  Bats also recorded in flight at Basildon Park in 2010 .Caught at Bowdown in 2013

 

4 records

Rare

340 records since 1802

Only handful of UK maternity roost and less than 30 hibernation sites are currently known.

Leisler’s bat (Nyctalus leisleri)

Scarce – no known roosts

 

7 records of bats in flight

Scarce in GB, common in Ireland

Serotine (Eptesicus serotinus)

Uncommon  but widespread across the county-

7 known roosts with one maternity roost to the West of the county.

 

74 records

 

74 records

Uncommon

Brandt’s bat (Myotis brandtii)

A total of 25 records for small myotis. 3 roosts and two hibernacula.

Common in N & W England Rare Elsewhere

Lesser Horseshoe Bat (Rhinolophus hipposideros)

Not recorded

Rare and endangered

 

About 230 summer (or all-year) roosts are known and about 480 hibernation roosts.

Noctule (Nyctalus noctula)

Widespread across the county with many recordings around east Reading and Virginia water. – several known roost

 

386 records

Uncommon

Whiskered bat (Myotis mystacinus)

See Brandt’s

Common in N & W England Rare Elsewhere.

Natterer’s bat (Myotis nattereri)

Common a number of roosts recorded in churches and barns.  Five known hibernation sites.

 

141 records

Common

Brown long-eared bat (Plecotus auritus)

Common known roosts in churches and lofts with many maternity colonies.

 

638 records

Common

Daubenton,s bat (Myotis daubentonii)

Commonly recorded flying over water. with three known roosts and 4 hibernacula.

 

396 records

Commonly observed along waterways throughout much of the UK.

Soprano pipistrelle (Pipistrellus pygmaeus)

Common and widespread with 33  known roosts mostly in houses but some in trees

 

257 records

Common and widespread throughout the UK.

Common pipistrelle (Pipistrellus pipistrellus)

Common many (over 50) known roosts.

 

767 records

Common

 
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