We had a fox attack a couple nights ago and luckily all my hens survived, but just in case we repaired all the fences and nearly doubled their height (we think he jumped over). We had also heard that cockerels can also protect the hens so we thought it best to get one. We’ve had him two days now and both mornings he started grabbing the hens necks and trying to pull them down, he normally calms down later on but he does it a lot first thing in the morning. Is this normal rooster behavior or is he being aggressive?