Bats

•BRITISH
NATURAL
HISTORY
SERIES*
QL737
.C5R48
2000
BATS
PHIL
RICHARDSON
Ba
oos s
Ba s
we e
o iginally
ca e-
and
ee-dwelling
animals
bu
many
now
ind
buildings
jus
as
sui able
o
hei
needs
(which
is
o una e
since
he e
a e
now
a
ewe
ees
a ailable
o
ba s
—
newly
plan ed
coni e s
con ain
ew
hollows
and
c e ices
when
compa ed
o
an
old
oak).
They
may
also
use
a i icial
ca es
in
he
o m
o
mines
and
unnels.
Each
ba
species
has
special
needs
ha
mus
be
ul illed
a
each
oos ing
si e,
such
as
he
igh
empe a u e
and
humidi y.
The
condi ions
change
a
each
si e
h oughou
a
season
so
he
ba s
equi e
a
numbe
o
si es
which
hey
can
isi
and
so
selec
he
bes
place
o
oos .
All
si es
need
o
be
well
p o ec ed
om
dis u bance
and
basically
clean
—
no
cobweb-in es ed
a ic
would
su ice
o
hese
e y
pa icula
mammals.
Ba s
will
seek
wa m
si es
when
hey
a e
ea ing
hei
naked
young
and
coole
si es
when
hey
wish
o
be
inac i e
and
conse e
ene gy
such
as
when
he
wea he
is
oo
bad
o
insec s
o
ly.
Ba s
do
no
ake
bedding
o
nes ing
ma e ial
in o
oos
si es
bu
ely
en i ely
on
he
na u al
nooks
and
c annies
o
gi e
hem
some
shel e .
T ee
oos s
Ma u e
ees
can
p o ide
a
numbe
o
sui able
oos ing
places
—
c acks
and
spli s
in
willows,
woodpecke
holes
in
old
oaks
and
beeches,
c e ices
and
holes
in
he
so ,
hick
ba k
o
Welling onias
and
hollow
b anches
and
loose
ba k
on
dead
ees
a e
amongs
jus
some
o
he
a ou ed
si es.
Some
ba s
e en
oos
on
he
ou side
o
he
ee
bu
behind
a
dense co e ing
o
i y.
The
posi ion
o
he
ee
is
impo an .
Dauben on's
ba s,
o
ins ance,
use
ees
ha
a e
nea ,
o
o e hanging,
wa e ;
o he
species
p e e
ees
in
woodland
bu
end
o
use
hose
si ua ed
along
he
edges
o
woodland
o
clea ings.
Pa klands,
wi h hei
well
spaced
and
well
ma u ed
ees,
a e
also
a ou ed.
Finding
ee
oos s
is
e y
di icul .
Pe haps
he
easies
o
loca e
in
B i ain
a e
he
ee
oos s
o
Noc ules.
This
la ge
ba
usually
uses
qui e
la ge
holes
and
c acks—an
old
woodpecke
hole
in
he
ee
unk
can
beideal.
On
a
wa m
summe 's
day
hey
may
be
hea d
cha e ing
noisily
om
such
holes
( unk
calls!)
and
so
can
be
loca ed
e en
om
some
dis ance.
Un o una ely
hey
do
no
always
cha e
and
o he
species
a e
o en
much
quie e
anyway
so
o he
me hods
o
loca ion
ha e
o
be
employed.
I
ha e
spen
many
a
happy
day
wande ing
a ound
la ge
ac s
o
woodlands
wi h
a
30- oo
(10-me e)
ladde ,
pee ing
deep
inside
holes
in
ees
in
his
sea ch
o
ba s
( aking
s eps
o
ind
oos s).
A
small
mi o
on
a
s ick
can
aid
he
sea ch
especially
in
e y
small
holes,
and
e en
a
mic ophone
on
a
long
pole
can
be
poked
jus
inside
a
hole
and
used
o
ea esd op
on
any
ba -cha
going
on
inside
(ensu e
ha
you
NCC
licence
co e s
you,
o
cou se;
see
Ba s
and
he
Law).
O en
such
sea ches
e eal
no hing
mo e
han
a
ew
s a led
S a lings
and
maybe
a
disg un led
owl.
Some
ee
oos s
smell
qui e
s ongly
o
ba s
and
ha e
an
en ance
polished
smoo h
by
he
passage
o
iny
bodies.
E en
when
a
oos
is
disco e ed
hen
i
is
qui e
no mal
o
i
o
be
aca ed
a e
a
ew
days
because
he
ba s
use
a
numbe
o
simila
si es
in
an
a ea
and
like
o
mo e
a ound.
One
ba
g oup,
a e
a
g ea
deal
o
ha d
wo k,
managed
o
ind
a
Noc ule
ee
oos ,
bu ,
on
keeping
a
log
o
he
numbe s
in ol ed,
he
g oup
soon
wigged
ha
some
Noc ules
we e
no
e u ning
bu
spending
days
elsewhe e.
This
led
o
hem
inding
ou
ee
oos s
wi hin
hal
a
mile
o
each
o he .
Noc ules
ely
qui e
hea ily
on
ees
o
oos ing
si es
and
a e
species
like
Ba bas elles
and
Bechs ein's
ba s
also
seem
o
p e e
woodland.
Pipis elles,
howe e ,
commonly
oos
in
buildings
bu
he e
a e
always
a
ew
a
s ay
in
woodland
and
oos
behind
i y
o
in
c e ices.
Ho seshoe
ba s
a e
no
in o
ees
a
all
and
much
p e e
some hing
a
bi
mo e
subs an ial
such
as
a
ca e
o
he
oo
o
a
de elic
ba n
o
house.
A
majo
p oblem
wi h
ee
oos s
is
ha
hey
a e
o en
los
when
he
ees
a e
blown
o e
in
gales
o
when
hey
a e
chopped
down
( ees
wi h
holes
a e
uneconomic
in
comme cially
un
woodland).
The
1987
gales
in
he
sou h
o
B i ain
ac ually
helped
Ba bas elle
ba s.
Some
ha e
now
mo ed
in o
he
spli s
c ea ed
as
he
op
hal
o
some
ees
we e
nea ly
snapped
o
by
he
wind.
As
i
ha ing
hei
homes
chopped
down
wasn'
enough,
he
poo
ba s
ha e
o
con end
wi h
bi d
p oblems
oo.
S a lings
like
o
ake
o e
old
woodpecke
holes
and
hey
will
no
li e
in
ha mony
wi h
any
ba s
ha
migh
al eady
be
in
esidence.
Usually
he
S a ling
is
he
ic o ,
and
he e
ha e
been
well
documen ed
cases
whe e
S a lings
ha e
e ic ed
Noc ules
om
such
holes.
In
one
case
a
young
emale
Noc ule
was
ba e ed
o
dea h
by
a
gang
o
ang y
S a lings
and
he
co pse
pushed
ou
om
he
ee
hole.
(opposi e)
Noc ules.
House
oos s
A
la ge
numbe
o
ba s
ely
on
houses
o
p o ide
hem
wi h
shel e .
Di e en
species
seek
di e en
condi ions
and
so
he
design
and
cons uc ion
o
a
house
can
in luence
which
ba s
use
i .
Ba s
oos
in
a
numbe
o
places
(see
p.
59)
bu
always
equi e
ai ly
clean,
quie
and
d augh - ee
posi ions.
I
is
o en
necessa y
o
sea ch
o
he
signs
o
ba s
(see
Ba
D oppings)
because
many
uck
hemsel es
deep
in o
c e ices
ou
o
sigh ,
bu
a
ew
species
do
hang
in
exposed
posi ions.
G ea e
Ho seshoe
ba s,
o
ins ance,
will
hang
om
a ic beams
in
old
houses
and
ba ns
bu
equi e
a
la ge
en ance
hole
such
as
a
b oken
window
o
open
ha chway
which
elimina es
many
houses.
Long-ea ed
ba s
a e
mo e
widesp ead
and
also
may
be
seen
hanging
om
idge
beams
in
an
a ic.
Al hough
many
a e
usually
isible,
hey
also
some imes
oos
be ween
he unde boa ding o
oo ing
el
and
he
iles
o
sla es
o
he
oo
and
will
also
be
ound
in
he
unnel
o med
by
he
idge
iles
and
idge
beams.
They
use
his
unnel
no
only
as
a
secluded
oos ing
place
bu
also
as
a
main
ou e
be ween
he
inside
o
an
a ic
and
he
exi
hole,
which
may
be
unde
a
idge
ile,
unde
lead
lashing
a ound
a
chimney
s ack
o
unde
he
ea es.
Sho
o
emo ing
pa
o
he
oo ,
i
is
e y
di icul
o
coun
he
exac
numbe
p esen
in
an
a ic
bu
usually
his
species
o ms
oos s
o
less
han
o y
ba s.
Many
egula ly
used
si es
a e
in
la ge
Vic o ian
houses.
Na e e 's
and
Whiske ed
ba s
p e e
olde
houses
oo.
They
spend
less
ime
in
exposed
posi ions
bu
a e
o en
ucked
away
behind
he
unde boa d-
ing
o
abo e
he
idge
beams.
Thei
exi
holes
can
be
anywhe e
in
he
oo
and
o en
some
dis ance
om
he
oos ing
place.
As
dusk
app oaches
hey
can
be
hea d
slowly
shu ling
along
he
oo
o
each
he
nea es
exi .
A
one
Whiske ed
Ba
oos
ha
I
egula ly
isi
hey
eme ge
om
any
o
se en
holes
in
he
oo
and
his
makes
coun ing
hem
e y
di icul ;
so
i
is
necessa y
o
su ound
he
house
wi h
ba
coun e s,
all
wa ching
di e en
exi s.
The
numbe s
change
seasonally
bu
usually
he e
a e
less
han
se en y
a
ha
si e.
In
he
sou h
o
England
Se o ines
may
be
ound
in
houses,
some imes
e en
in
mode n
ones.
They
need
a
la ge
en ance
han
many
o he
ba s
and
his
mus
limi
which
houses can
be
used.
Once
inside
he
oo ,
hey
mo e
a ound
un il
hey
ind
he
mos
sui able
oos ing
posi ion
which
may
be
jus
unde
he
ea es
o
pe haps'on
he
chimney
s ack
in
he
lo .
O he
species
mo e
hei
oos ing
posi ions
in
a
simila
way
as
he
empe a u e
and
o he
ac o s
change
du ing
he
summe .
Mos
ba s
oos ing
in
houses
o m
clus e s
so
a
g oup
o
en
Se o ines
will
no
ake
up
much
space
e en
hough
hey
a e
la ge
ba s.
Pipis elle
eme ging
om
gable
end
oos .
The
Pipis elle
will,
I
suppose,
always
be
he
mos
success ul
house-
oos ing
ba .
Being
e y
small,
i
can
squeeze
h ough
na ow
gaps
ha
de e
o he
species
—
slo s
less
han
Vi
inch
(10 mm.)
wide
ha e
been
used.
In
No hamp onshi e
we
ind
80%
o
ou
Pipis elle
oos s
in
houses
buil
since
1960.
A
small
gap
be ween
he
so i
and
he
house
wall
(see
illus a ion)
gi es
access
in o
a
wa m,
clean
oos ing
si e
inside
he
boxed-in
ea es
o
a
oo .
I
he
condi ions
ou side
become
oo
ho
o
oo
cold
hen
hey
may
mo e
be ween
he
oo ing
el
and
iles,
on
op
o
he house
wall
o
in o
he
ca i y
o
he
wall.
Equally
sui able
a e
he
ba -sized
gaps
behind
ascia
boa ds
o
hanging
iles
which
a e
o en
ound
on
mode n
house
walls.
A
wa ped
plank
o
slipped
ile
gi es
access
o
hese
ideal
si es.
Pipis elles
o m
much
la ge
oos s
han
o he
species
a
some
imes
o
he
yea
and,
being
small
ba s,
a
la ge
numbe
can
squeeze
in o
a
e y
small
a ea.
I' e
wa ched
hem
eme ging
om
he
op
h ee
ows
o
hanging
iles
abo e
a
ga age
doo
and,
wi h
he
help
o
a
eam
o
coun e s,
coun ed
717
ly
ou
in
40
minu es.
Such
la ge
oos s
a e
unusual;
200—300
egula ly
occu
bu
50—150
is
he
usual
numbe .
They
mo e
oos s
egula ly
and
also
spli
up
in o
smalle
g oups
so
e en
he
smalle
oos
si es
a e
used
o
only
sho
pe iods
o
ime.
The
oos
owne
wi h
he
717
ba s
was
mo e
han
happy
wi h
he
inal
coun
and
we oas
e
hei
success
in
whisky
a e
he
las ew
had
eme ged.
Pipis elles,
like
ma
>
ba s,
p e e
o
oos
high
up,
so
o en
choose a
gable
end
wall
and oos
as
close
o
he
op
as
possible.
The
habi
o
Pipis elles
oos ing
on
he
ou side
o
he
house
a he
han
being
inside
he
a ic
is
well
wo h
poin ing
ou
o
he
oos -owne
i
he
is
a
li le
wo ied
abou
he
new
lodge s—no
ha
hey
cause
any
damage
anyway.
Whiske ed
Ba
oos
in
house
lo .
La ge
cella s
p o ide
good
si es
o
some
species.
Access
mus
be
possible
h ough
open
windows
o
h ough
an
open
ou side
doo
and
he
cella
mus
be
li le
used by
people.
Ho seshoe
ba s
ind
such
places
ex emely
a ac i e.
Open
po ches
and
any
co e ed
a ea
nex
o
a
house
may
be
used
by
ba s
as
a
empo a y
oos
si e
du ing
he
nigh .
In
ac
he e
is
a
la ge
numbe
o
possible
places
o
ba s
o
oos
in
any
house;
houses
ha e
become
o
majo
impo ance
o
he
ba
popula ion.
Occasionally,
pa icula ly
in
au umn,
ba s
a e
ound
inside
he
li ing
accommoda ion
o
a
house.
Usually
only
a
single
ba
has
been
so
b a e
and
i
will
ha e
en e ed
by
acciden
h ough
an
open
window
—
possibly
seeking
a
hibe na ion
si e.
In
some
old
coun y
mansions
ba s
ly
egula ly
along
he
co ido s
ac ing
as
i
hey
owned
he
place.
In
one
such
Hall
I
isi ed
he
ba s
we e
sneaking
in
om
hei
oos ing
si e
in
a
s one
wall
and
meande ing
a ound
he
house
a
ia a-heigh ,
occasionally
igh ening
he
odd
i led
lady
s aying
he e
as
a
gues .
The
ba s
we e
en e ing
h ough
one
o
wen y
ba h ooms
up
in
he
se an s'
qua e s.
This
was
a he
an
excep ional
case
and
usually
any
ba
inside
a
house
is
despe a ely
seeking
a
way
ou .
I
a
window
is
le
open
hen
hey
will
o en
ind his
escape
ou e
bu
i
a
ba
lands
on
a
wall,
hen
ca e ully
co e
i
in
a
so
clo h,
pick
i
up
and
elease
i
gen ly
Access
and
oos ingplaces.

ou side
(p e e ably
a e
da k).
Indoo s
i
is
a he
di icul
o
ind
hem
i
he
exac
es ing
place
is
no
pinpoin ed.
A
one
si e
I
isi ed
he
lady
o
he
house
had
ensu ed
ha
no
one
dis u bed
he
ba
ha
she
had
seen
in
he
li ing
oom
by
sealing
up
he
doo
wi h
s icky
ape.
I
managed
o
uns ick
my
way
in
and
sea ched
o
15
minu es
in
ain.
E en ually
I
ound
a
Pipis elle
ucked
in o
one
o
he
plea s
on
he
cu ains
which
was
qui e
amazing
because
I
had
ca e ully
d awn
he
cu ains
back
and
o h
a
numbe
o
imes
in
my
sea ch
—
i
mus
ha e
been
ge ing
qui e
giddy.
Ba s
can
ge
in o
any
oom
because
hey
can
c eep
unde
closed
doo s,
bu
hey
a e
equen ly
ound
in
ba h ooms,
possibly
because
he
gaps
a ound
he
wa e
pipes
may
p o ide
a
way
in
om
he
a ic.
Bed ooms
a e
also
o en
isi ed
mainly
because
many
people
sleep
wi h
he
window
open.
As
usual
he e
a e
always
a
ew
ex o e s
ha
u n
up
in
he
mos
unusual
places.
I' e come
ac oss
odd
ba s
unde
loo boa ds,
in
a
pan
o
a
oile
(looking
a he
lushed),
in
an
elec ic
ligh
swi ch
i ing
in
a
house
unde
cons uc ion
and
e en in
a
ba h
ap
which
had o
be
disman led
o
emo e
he
ba .
House
con e sion
Gable
end
o
a
house.
I
you
wan
o
encou age
ba s
o
oos
in
you
house,
he e
a e
some
sugges ions
ha
will
no
a ec
he
s uc u e
o
you
house.
Roo s:
access
slo s
need
o
be
made
unde
he
ea es
a
a
gable
end
and
nea
o
he
highes
poin .
Also
p o ide
an
en ance
unde
idge
iles
by
chipping
ou
some
o
he
cemen
and!
o
by
li ing
he
lead
lashing
nea
he
chimney.
Inside
ensu e
ha
he e
is
access
by
p o iding
a
gap
in
he
oo ing
el
nea
he
en y
holes.
B ush
away
any
dus
and
cobwebs
om
he
a e s
and
nail
a
ew
panels
o
ib e
boa d
on o
he
a e s
jus
below
he
idge
o
p o ide
a
shel e ed
a ea.
Ou side
walls:
a ach
Vz
inch
(3
cm.)
ba ens
o
he
uppe
pa
o
a
gable
end
wall
(sou h
o
wes
side)
and
nail
on
ho izon al
o e lapping boa ds
o
hanging
iles,
emembe ing
o
lea e
en ance
holes
o
he
gap
behind.
cp
Chu ch
oos s
Ba s
ha e
long
been
associa ed
wi h
chu ches,
which
ce ainly
p o ide
some
excellen
oos ing
places
—
eal
sanc ua ies
o
ba s.
Wi h
one
in
almos
e e y
illage
in
B i ain,
chu ches
play
an
impo an
ole.
Al hough
coole
han
house
oos s,
hey
a e
quie e
o
mos
o
he
week
bu
do
end
o
become
a
bi
noisy
on
Sundays.
Many
adi ional
ypes
o
chu ch
buildings
ha e
been
added
o
o
epai ed
o e
he
cen u ies
and
his
gi es
ise
o
a
numbe
o
sui able
c e ices
o
oos ing
ba s.
Mos
a e
in
he
chu ch
oo
wi h
a ou i e
si es
being
be ween
he
chancel
and
na e,
na e
and
owe ,
abo e
he
al a
and
in
he
aisle
oo .
Ba s
squeeze
be ween
he
oo
imbe s
and
he
chu ch
walls,
and
ind
plen y
o
oos ing
space
be ween
unde boa ding
and
he
lead
o
ile
oo
co e ing.
Some
ba s
can
e en
be
ound
oos ing
behind
no ice
boa ds
and
wooden
hangings
on
he
walls.
Gaining
access
o
hese
si es
inside
a
chu ch
can
es
a
ba
s
ingenui y.
Some
en e
easily
enough
unde
he
ea es
o
he
oo
o
h ough
gaps
o
holes
in
he
lead
lashing
on
he
oo ;
hese
may
only
lead
o
he
oo ,
no
o
he
chu ch
i sel ,
and
many
a
ba
li es
happily
in
such
a
place
wi hou
se ing
a
wing
inside
he
chu ch
a
all.
Some
good
oos ing
places,
howe e ,
a e
only
accessible
om
inside
he
chu ch
and
so
en y
may
be
gained
h ough
a
b oken
window
o ,
mo e
commonly,
o e
he
chu ch
doo .
These
old
wooden
doo s
a e
usually
e y
hea y
and
sink
on
hei
hinges,
lea ing
a
ba -sized
c ack
a
he
op
which
Pipis elles,
o
ins ance,
lo e
o
squeeze
h ough.
In
one
chu ch
I
know
a
ba
egula ly
squeezed
o e
he
op
o
he
closed
po ch
doo ,
lew
h ough
he
po ch,
squeezed
o e
he
main
chu ch
doo ,
hen
lew
up
inside
he
chu ch
o
a
oo
c e ice
which
i
en e ed
wi h
a
bi
mo e
squeezing,
doub less
p e y
hin
by
his
ime.
The
po ches,
especially
he
oo s, also
make
good
oos ing
si es.
One
summe
my
ba
g oup
looked
a
all
285
chu ch
po ches
in
No hamp onshi e
and
ound
ha
almos
a
hi d
we e
used
by
ba s.
Al hough
Pipis elles
we e
he
mos
egula ly
ound
species
he e
we e
also
Na e e 's,
Long-ea ed
and
e en
Dauben ons'
ba s
a
some
si es.
O he
species
can
be
ound
a ound
chu ches,
o
cou se,
al hough
some,
such
as
Se o ines
and
Noc ules,
equi e
bigge
c e ices
and
mo e
oos ing
space.
Al hough
bel ies
ha e
been
amed
o
ba s,
hey
a e
no
he
bes
places
o
ind
hem.
I
he
bells
a e
ung
egula ly
hen
he
dis u bance
is
g ea
o
any
dozing
ba
-
hey
don'
ind
he
sound
o
bells
ap-pealing!
The
lou es
make
he
owe s
d augh y
places
and
o en
bi ds
gain
en y
which
may
dis u b
any
ba s
(see
p.
55).
Some
bel ies
a e
quie e ,
bu
I
a ely
ind
any
sign
o
ba s
in
hem.
Ba s
ou side
o en
ly
close
by
he
owe
a
nigh , some imes
ci cling
i
and
his
may
ha e
been
he
eason
o
i s
unwa an ed ame
as
a
ba
°os -
Ba s
ha e
an
un o una e
and
unexplained
habi
o
lying
ound
and
ound
inside
big,
open
buildings
a
nigh ;
hey
demons a e
is
°
en
, j
chu ches.
Li le
eeding
seems
o
be
aking
place
and
he easons
o
ns
o
beha iou
a e
no
clea .
I
is
un o una e,
because
i
causes
an
e en
sp eado
ba
d oppings
in
all
co ne s
o
he
chu ch
which
can
annoy
ec
eane
he
ica .
Co e ing
o e
sensi i e
a eas
wi h
clo hs
a
e ia es
e;
p
^
B asses
and
ma ble
on
he
loo
should
be
P o ec ed
anyway
o' housands
o
human
ee
will
wea
away
he
su ace
making
^
.unchu ch
mouse'
insigni ican .
I
small
numbe s
o
ba s
a e
p esen
hen
he
chu ch
mo
always
ge s
he
blame.
„™di inns
a e
igh .
The
s one
Chu ches
can
be
used
in
all
seasons
i
e
^
^
SQ
some
ba s
will
walls can
gi e
condi ions
e y
siml,a
Long-ea ed
ba s,
o
ii
hibe na e
he e.
They
a e
also
used
a
nigh ,
Long
ins ance,
63
may
o en
be
seen
hanging
up
on
he
oo
beams
a
nigh ;
disca ded
mo h
wings,
he
emnan s
o
a
ba
eas ,
will
o m
a
small
pile
below.
Ba s
in
chu ches
a e
o en
un.
I
ha e
been
sen
some
e y
de ailed
no es
conce ning
ba s
ha
we e
ca e ully obse ed
du ing
chu ch
se ices.
A
one
e ening
se ice
he
ica
was
commemo a ing
he
Ba le
o
B i ain
and
as
he
spoke
o
he
exploi s
o
he
RAF
a
Pipis elle
epea edly
swooped
low
o e
he
pulpi
causing he
ica
o
duck;
he
cong ega ion
ound
i
mos
amusing.
In
one
small
illage
he
pa ishione s
a e
so
p oud
o
hei
Na e e 's
ba s
ha
hey
sugges ed
ixing
a
mi o
unde
he
oos ing
place
so
ha
he
choi
could
wa ch
he
ba s
du ing
he
se ices.
I
eminded
hem
ha
he
poo
ba s
would
also
be
able
o
see
in
he
mi o
and
migh
be
igh ened
a
he
sigh
o
a
dozen
people
g inning
up
a
hem.
On
e lec ion
hey
d opped
he
mi o
idea.
One
wonde ully
la ge
Na e e 's
oos
in
a
po ch
was
o
na ional
impo ance
so
we
moni o ed
i
egula ly.
This
in ol ed
ca ching
a
ew
a
dusk
wi h
a
ne
ac oss
he
en ance
o
see
he
age
and
sex
o
he
ba s.
E e yone
had
been
old
o
ou
s udy,
bu
cle ics'
memo ies
a e
some imes
sho
and
he
local
ica
came
b eezing
up
he
chu ch
pa h
wi h
a
hea y
wa e
and
'Good
e ening,
my
child en'
as
he
walked
s aigh
in o
he
ne .
I
ook
some
ime
o
ex ica e
him,
he
dog
colla
ge ing
pa icula ly
en angled.
B own
Long-ea ed
Ba .
Ca e
oos s
Ba s
will
use
no
jus
ca es
bu
any
ca e-like
s uc u es
-
unnels,
mines,
g o oes,
ice-houses,
cella s,
uined
cas les,
unde g ound
o i ica ions
and
simila .
The
empe a u e
o
hese
places
is
bu e ed
om
ou side
so
can
emain
cold.
These
a e
much
sough
a e
in
win e
o
hibe na ion,
al hough
ba s
may
use
hem
in
summe
o
nigh - oos ing.
Indi idual
ba s
may
use
he
same
c e ice
deep
inside
a
pi ch-black
ca e
sys em
e e y
win e ,
showing
ha
hey
ha e
an
excellen
memo y
based
on
he
sound
pic u e
buil
up
wi h
echo-loca ion.
Humidi y
is
i al
in
win e
and
needs
o
be
high.
The
bes
si es
will
also
gi e
a
a ie y
o
di e en
low
empe a u es
so
di e en
species
can
all
bene i .
Sub le
changes
in
empe a u e
o
humidi y
will
wake
up he
ba s
and
can
cause
hem
o
mo e
-
e en
s anding
unde
a
ba
will
cause
he
empe a u e
o
ise
enough
o
a ousal.
In
wa me
coun ies
han
B i ain
ba s
egula ly
use
wa m
ca es
o
day- oos ing,
o en
chosen
in
p e e ence
o
buildings.
Humans,
howe e ,
a e
also
a ac ed
o
unde g ound
si es
bo h
in
summe
and
win e ,
and
hei
unin en ional
dis u bance
can
d i e
he
ba s
ou
so
he
bes
si es
o
ba s
ha e
o
be
p o ec ed.
<2P>
The
own ba
Al hough
ba s
a e
o en
associa ed
wi h
illages,
woodlands
and
he
coun yside
he e
is
many
a
ba
in
he
own.
Plen y
o
good
accommoda ion
and
ood
is
o
be
had
i
hey
know
whe e
o
look.
Housing
is
mo e di e se
han
in
illages
so
he
choice
o
oos
si e
is
g ea e
o
hose
ba s
ha
li e
in
buildings
—
maybe
a
cen ally
hea ed
semi-de ached
house
on
he
edge
o
own
o
a
nice
wa m
o ice
block
only
a
ew
seconds'
ligh
om
he
own
cen e.
Some
ba s
ha e
e en
been
epo ed
using
c e ices
on
owe
blocks
( la
ba s?).
Towns
don'
o e
he
di e si y
o
insec s
ha
he
coun yside
p o ides,
bu
hey
ha e
su icien
places
whe e
a
easonable
numbe
can
be
ound.
Many
owns,
o
ins ance,
ha e
i e s
unning
close
by,
which
usually
ha e
plen y
o
insec s.
The
b igh
ci y
ligh s
a e
an
a ac ion
o
insec s,
which
cong ega e
a ound
s adium
loodligh s,
some
s ee
ligh s
and
ai po
lamps,
and
ba s
soon
come
along
o
eed.
Town
pa ks
p o ide
qui e
a
a ie y
o
insec
li e:
some
ha e
small
lakes
and
I
ha e
ound
Dauben on's
Ba ,
a
species
which
eeds
p incipally
on
aqua ic
insec s,
on
such
a
pool
only
a
mile
om
a
own
cen e.
Pipis elles
can
be
ound
igh
in
he
own
cen e
al hough
hei
main
eeding
a eas
may
be
u he
a ield.
Old
Vic o ian
ac o ies
and
associa ed
e aced
ows
o
houses
may
be
home
o
small
numbe s
o
Long-ea ed
ba s.
One
summe
I
su eyed
he
own
o
No hamp on
a
nigh
using
a
ba
de ec o
o
loca e
lying
ba s
and
was
pleasan ly
su p ised
a
he
numbe s
in
he
a ea,
al hough
hey
we e
concen a ed
in
a
numbe
o
la ge
pa ks,
chu chya ds
and
along
he
Ri e
Nene.
Using
a
de ec o
in
such
an
a ea
is
no
easy
because
i
picks
up
a
numbe
o
o he
noises
apa
om
ba s
—
he
squeaky
wheels
o
a
bicycle,
he
b akes
o
a
bus
o
e en
people
walking
on
g a el.
All
o
hese
ha e
o
be
ca e ully
dis inguished
om
ba
calls.
In
one
pa k
I
picked
up
a
mos
unusual
noise,
poin ed
my
spo ligh
in
he
di ec ion
o
he
sound
and
illumina ed
a
cou ing
couple
passiona ely
kissing;
I
had
o
bea
a
has y
e ea
wi h
ang y
h ea s
inging
in
my
ea s.
Ano he
odd
'chonk'
noise
I
de ec ed
was
a
mo e
ba -like
bu
was
coming
om
unde
a
bush
-ha dly
he
place
o
ind
a
lying
ba !
Close
in es iga ion
p o ed
his
o
be
coming
om
a
g umpy
old
hedgehog.
Bu
i
was
good
o
see
ba s
deep
inside
ou
conc e e
jungles;
whe e e
you
li e
in
B i ain
he e
is
always
he
chance
o
do
some
ba ing.
<&>