Friends come in all shapes and sizes. Look closely at my little friend atop my back.
I provide my bird friend a buffet of tasty insects. He does me the favor of removing some of those irritating skin parasites. I wish he would remove all of them, but he stops when he is full. Admittedly, I am a big guy, so I understand his point of view. Hmmm. I wonder if he could bring me some more friends. Hey, birds, the free buffet is open!