Great Blue Herons have specialized feathers on their chest that continually grow and fray. The herons comb this “powder down” with a fringed claw on their middle toes, using the down like a washcloth to remove fish slime and other oils from their feathers as they preen. This one was located in Central Florida, near Lakeland. They can hunt day and night thanks to a high percentage of rod-type photoreceptors in their eyes that improve their night vision. As you can see, they are also beautiful birds.