There has been a decline of kestrels across the US. One way we can help is put up nest boxes and not use lawn chemicals on our property. That means NO herbicides, NO insecticides, and very, very little fertilizer. Use natural decaying plant material instead. If there are no bugs and grubs in the grass there are no food sources for our birds. Not the mention the run-off into our streams and waterways. Remember, everyone lives downstream.