I came home tonight to find about half my flock of 30 had missed the automatic coop door closing. I started rustling them toward the coop and my 6 month old cockerel starting chasing one of the pullets around and mounted her (in the dark and the rain). Up until then I hadn't seen him express any interest in the girls. Once I got them all into the coop he mounted one of the hens on the roost bar. Everyone was cranky and squawky and I wonder if this behaviour had been going on all day. Then I noticed one of the pullets has a pecking wound on her head (maybe caused by stressed hens?). I have treated her with Vetericyn and Polysporin and put her in a dog crate. My question: is this normal for a cockerel? He seems to have gone from zero to 60 in one day and has clearly stressed out the flock. I also have a 3 year old bantam rooster who is very calm and so far, there has been no conflict between the two males. I did have to re-home this cockerel's father last spring because he suddenly got aggressive with the bantam. I'm hoping I don't have to re-home this guy as he is spectacular. Here's a pic of Levi.