2 month old cockerel being aggressive toward other chickens

[Tsheaby]

I bought 4 chicks in March, 1 RIR, 2 Ameraucanas, and 1 Amberlink. Beginning of May, the two Ameracaunas (1 regular, 1 Blue) started “tiffing” and I panicked thinking they were too crowded in their indoor XL dog wire dog crate brooder. Scraped my plans of building a coop and bought one from the store to get them outside and more room ASAP. They kept tiffing and it became quickly obvious the regular Ameracauna was a rooster. He never bullied the RIR and the Amberlink, just the blue Ameracauna, and started pecking my feet when I wore slippers (weird I know). He still allowed me to pick him up and such but his rooster behavior was starting to show quite quickly. I rehomed him on a farm outside of town, the new family fully warned he was starting to exhibit not necessarily aggressive but sassy behavior.

Fast forward to July, it turns out my Blue Ameracauna is ALSO a rooster. I literally had no idea until he discovered his “adult voice”, due to him actually being INCREDIBLY sweet and nicer than the RIR and Amberlink hens. Very social, loved to be picked up and held, very gentle and docile....

I rehomed him with the same family that took my first roo, and they were practically at my door to pick him up he day I asked, as they are planning on specifically breeding him due to his handsome looks and sweet natured, kind personality.

All in all looking back, the signs were all there that they both were Roos. They weren’t fighting for space, they were just becoming teenagers and establishing who the dominant one was.

If I were you, I’d maybe look into rehoming him if he’s already exhibiting those behaviors - he may continue to become more and more aggressive as he fully matures. If it doesn’t bother you, having a sassy roo can be a good thing sometimes as far as protection for your hens goes!

 

[VanUnamed]

Thanks for all of your replies. For now he's below 4 lb, I will let it grow a bit more and likely cull him. I also plan to have a total of 5 hens, so having a single roo is even too much for them. Henry *the sweet one" is still a roo, he chased the ducks every now and then, but only for a short time and never, ever pecked them. Most often than not they even stay side by side. Today the bad roo, lost to him when they confronted each other, the first thing he did in frustration was to chase the ducks.
From what I learned, you have genetics and environmental causes that define a bird's behaviour, as they had the same environment, the same treatment, all I can think is genetics. The hen and henry show silvery highlights on their feathers, this other one has golden highlights.
Thanks again <3