We just added some new layers to our flock and there is a dominant Hen (there were no roosters where she came from.) Some of the hens show signs that she has tried to mount them, like a rooster would. She doesn't crow but is bigger and more aggressive than the others as well. Is this common for hens? (My apologies if this has been asked a million times before. I scanned through some posts and didn't see it...) We have a rooster who is blind in the left eye and easily spooked.