Take it outside and release it. If it is winter or if it is injured do not release. If it is night, leaving doors open and lights on in the house will induce the bat to leave on its own. Nursing baby bats may be clinging to their mothers. Don't release a bat if it is sick, injured or too young to live on its own.
Eyes open an birth.
Weaned at 12-20 weeks. Body temperature is 100-101 degrees. Keep the animal calm and quiet. Fawns should not be rescued unless they are injured or you are sure they are orphaned. A fawn's protection is its ability to lay motionless.