All weekend I've had a crow pecking mine and the gfs cars!

I was laying in my bed and could hear two crows peckin the roof and one hanging off my windscreen wiper! I'm not a happy bunny!

Does anyone know any tips to avoid them, they've been at it wilst I was out the house aswel

Was thinking to get a cover but I herd it can damage the paint, would this apply if I cleaned the car and straight away covered it?

Thanks