Let's help out bats!

One little brown bat can consume several thousand insects per night

Buy your own bat box to attach to your house. 
One source of bat boxes that has been approved by bat conservationists is: 
http://www.featherednestsite.com/Work.html


A source of water is also important for these tiny flying mammals

• You can take an active role in our conservation efforts by contacting local range and wildlife managers, as well as landowners with horses or other livestock. Explain the need for all water troughs to have wildlife escape structuresand for minimizing obstructions to the water’s surface. The following summary of conservation actions will help ensure that bats and other wildlife have safe and accessible access to live-giving water:

• Water troughs must have properly designed and placed escape structures and obstructions to the water’s surface should be minimized where possible.



• The larger or longer the water development, the better it is for bats. Where possible, try to provide at least eight feet of unobstructed water surface.



• Maintain consistent water availability and full water levels in troughs, ponds, etc., especially during the late spring through mid-summer bat maternity season and in times of drought.

Via http://www.batcon.org
From Water for Wildlife: