Bat deaths...

could cost US billions each year. They are, after all, nature's pesticide. Also, note that so-called "green" wind turbines "will have killed 33,000 to 111,000 annually in the Mid-Atlantic Highlands alone."

Remember, bats need friends.

UPDATE:  More here with an interesting map.

RELATED: I am pleased to find that there is a big brown bat occupying one of my many bat houses late this afternoon.  I was surprised to see a few guano droppings, and sure enough, there's an early arrival in the box overhead.
 
Also, do your part: DIY - Build Your Own Bat House.