I've noticed a kestrel in my neighborhood. He sits on a wire overlooking a grassy park. He stares intently a the ground looking, I suppose, for a meal of mice, grasshoppers, moths or voles. With their keen vision and ability to see ultraviolet light, they can see the line of urine that a mouse or vole has left behind. The kestrel will be gone for a couple weeks and then return to the same spot. Does he eat all the food in sight and then go to another spot for a couple weeks while the populations of mice and grasshoppers recovers? I drive by this spot only twice a day so my sampling is not very thorough. I enjoy seeing him though. I'm glad my neighborhood has enough diversity and habitat to support a fierce predator like a kestrel.
Shortest And Steepest
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