BRITISH MAMMALS 
below greyish white. The bases of the hairs above and below are very 
dark. 
This species is found throughout the greater part of Europe, and 
according to Barrett-Hamilton, ranges in Asia to Japan, where it is repre- 
sented by a sub-species. 
In England and Wales, there are few counties where it has not 
occurred, being common in some localities. Across the border in Scotland 
it is hardly known, the only reliable evidence of its occurrence there is 
a specimen in the British Museum from Inveraray, Argyll, while a skin 
in the collection of the late Robert Grey was supposed to be from 
Midlothian. 
There are various records for Ireland. 
Natterer's Bat is fond of well-watered woodland country and is sociable 
in its habits. 
The late R. F. Tomes, writing in Bell's 'British Quadrupeds (and ed. 
p. 55-56) describes a colony found under the church roof at Arrow, near 
Alcestor ; here the Bats were clustered in a mass three or four inches 
thick, six or seven wide and about four feet in length, while a constant 
movement was going on, as those on the outside endeavoured to push 
their way inwards, probably for warmth. 
As a winter retreat, Natterer's Bat shows a partiality for caves. Mr. 
Heatley Noble tells me it is common near Henley-on-Thames, where 
it hibernates in a cave in the chalk. 
Near Godalming, Surrey, in the cavern already referred to in the 
account of Daubenton's Bat, I have found it on several occasions 
hibernating in the vaulted roof. They were all separately lodged in deep 
crevices among the stones, and sometimes entirely hidden from sight. 
When disturbed, they uttered a peevish chattering squeak. Two of these, 
which I kept in confinement for a few days, were very gentle in their 
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