I did not think that a hawk would attack with me being just 20 feet away. But now I know. These chickens are my first, so everything is a learning experience. The cockerel did a great job of warning everyone. He let out a loud scream just before the hawk was at ground level. The cockerel and five of the pullets made a quick dash back to the coop. The remaining two pullets hid under a pine tree. I ran at the hawk, waving my arms, and screaming like a madman. I may have scared the chickens more than the hawk did.