I noticed our 2 males were being defensive, then the females decided to attack the chickens. The males will chase the chickens off but the females will just pull at their tail feathers. Putting peepers on them sounds like a good idea. I don't believe our guineas are sexually active because they are still technically keets, so I was confused as to why the males were aggressive. We have them currently paddocked in an electric fence, we cannot free range them due to the insane amount of predators, but we will be free ranging in our next house. I found raising the chickens and guineas together made it way easier getting them back into the coop at night. They were well behaved until 2 weeks ago, now our Plymouth rocks are terrified of the guineas. I wonder If the guineas will calm down as it gets further into fall and winter. My previous house was in Talbot County less than an hour drive from Chestertown, I only knew of 1 person in Maryland that owned guineas haha, and only 2 who owned chickens, BYC doesn't seem too big in Maryland.