I know Bracknell does not have many caves but we do have rather alot of cavers.
We do also have a stunning amount of bats.
Not at all sure wot species, most common are the smaller b*****s but have occasionally seen much bigger ones.
Mind u we also have a fantastic amount of deer, including montjac,
these I belive are from China, don't know if they walked all the way.
When I were a lad, we also had red squirrels but not seen any of those for forty years, millions of grey b*****s those, stripping the trees.
Recently we have had red kites & buzzards moving in, now here all the time, also rather a lot of lizards, snakes, foxes, rabitts, moles but very few hares.
The main reason is the forest.
Legally Bracknell is actually known as Bracknell Forest.
Binfield, one of our villages, where our pub is, used to be the center of Windsor Forest,
which was a Royal Hunting ground.
Untill about 1800, Royal Berkshire was the least populated of all the home counties, this because it was mainly forest, kept that way on purpose.
Some of the trees in "Windsor Forest" an infinately bigger forest (Royal Park) in the past, were there before the Norman Invasion.
These trees are mainly Oak but also Yew & Sweet Chestnut.
That is a little strange as it had been said that the Normans introduced
sweet chestnuts. So, IMHO it was probably The Romans who introduced them but both The Romans & The Normans introduced or perhaps reintroduced many species of plants & animals into Britain.
Ireland is much poorer species wise than us, France is much species richer than us, mainly to do with the glaciations.
So, it is my belief that we have so many bats around Bracknell as
(if u don't count The New Forest) we have the biggest forest in
the south East of England
Also we have a huge amount of lakes, these are the left overs from clay, sand, gravel extraction but also as we are so close to Windsor Castle, there are a huge amount of mansions, all with their own lakes.
These attract insects, which attract bats.
As I said, some of thee actual trees are more than a thousand years old.
This also means than many species live in, on, off these ancient living things, greatly increasing the biodiversity.
Britain as a whole, has more ancient trees, than the rest of western europe put together.
The reason for that is royal or rich peoples hunting grounds / parks.