We used to have an enormous yellow striped tomcat when I was a kid. One day, I saw him lying in his favorite spot on the patio table when a nesting mockingbird decided it didn't like him being so close to its nesting area.
The bird dive-bombed the cat a few times before the cat, almost casually, rolled slightly on his side and whapped the bird with a single slap. The bird spun through the air like a helicopter crashing in a 1980s action flick and hit the ground.
The cat rolled back onto his stomach. The bird flopped on the ground for a second, righted itself and quickly flew away.
The bird didn't buzz the cat ever again, but I could hear it shriek every time the cat went out to the table.