Yesterday, a red tail hawk attacked my hens while they were out. None were hurt, but badly freaked out. I scared the hawk away. Three of the hens went into the coop which I was cleaning at the time. I had not collected eggs yet. The three hens got into the nest boxes and started breaking the eggs. I stopped them and gathered the remaining eggs. Does anyone know why they would do this??? They layed great today??? Never seen this before. Any ideas???