I had a mockingbird that did the exact same thing. Tried a rubber snake. Didn't work. So I took care of him the ole fashioned way.Came home yet again. Over a week now. Everyday. This red cardinal is attacking itself. Well he thinks he is. Flying into rear window, side mirrors, ****#ing all over it. I didn’t want to kill it but now I don’t care. I can never get him close. Wife said she can literally pull up. And he will fly in. He has now scratched the side mirror.
Any ideas how to get it to stop? If I come home tomorrow and there is more signs of it. Walmart and BB gun it is.