Large Twin Crevice Bat Box

Larger box with two curved internal voids narrowing down to tight crevices at the top.  Suitable for a range of bat species, mating roosts and spring and autumn roosts where the thermal mass is a benefit.  Similar to Kent type bu with a rot hole entrance and more natural appearance.   Top loop for more comfortable carrying and  quick  initial attachment to the tree and two through the box nail holes for secure attachment.