Males, apparently, are more numerous than females.
The species appears to be more abundant in localities where there are caves which provide it with the equable temperature it requires in hibernation. It is most susceptible to wind, and will frequently remain inactive in its shelter because there is wind outside. Even tame individuals exhibit a strong desire to get into the most retired corners and crevices. The first recorded British example was taken in a cavity over a baker's oven to which it had obtained access through a small fissure.
[Pl. 20.]][D 36.
Red-grey Bat.
Emerging from retreat in hollow tree.
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[Pl. 21.]][D 37.
Daubenton's Bat.
Myotis daubentonii.
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