There appears to be some association with bird and mammalian nests, though the nature of this association is not clear. Some species have been reared from guano and dung, from debris in tree hollows, and bird and mammalian nests.
It appears there is an association with both bird and mammalian nests, but the exact nature of this connection remains ambiguous. Certain species have been nurtured from guano, dung, tree debris, and nests found in both avian and mammalian habitats.