Pesky parrot adorably love bites his owner

Einstein loves to pick on me while I'm trying to work. He wants to get on my desk. He could fly on my desk, but he thinks it's more fun to annoy me. It's very distracting and I don't get any work done. I really don't mind, but it does hurt and all of my shirts have holes in them. Sometimes he does sit quietly, but it's rare.