To decrease the use of pesticides, farmers in the Middle East are putting up nesting boxes for kestrels (small hawks) and owls. Check out the picture of an American Kestrel! The kestrels catch rodents during the day, and owls hunt at night.
The success of using kestrels and owls is impressive. The environment is less polluted, and fewer birds and butterflies are killed. A cleaner environmnet is better for all plants and animals.
Source Credit: Bird Life International (2009, April 24). Owls, Kestrels In Middle East: Flying Mouse-traps Control Pests Without Chemicals. ScienceDaily. Retrieved June 11, 2009, From: http://www.sciencedaily.com/releases/2009/04/090418085935.htm