Hi, I have a rooster, 4 month old australorp, so he's still a baby but he's starting to show aggresion, he bites me if I get near him, not just a little peck but full on chomping down on me as hard as he can. I wanna know if there's a way to stop this. I doubt there is, but if there is it would be appreciated. I have a skin disease so it itches and takes longer to heal when he bites me. Please and thank you.
As others noted, 4 months is old and showing aggression isn't a good sign. Normally their hormones don't really kick in hard for another couple of months.
In general, I never put up with any chicken that (roo or hen) that's too free with their beak around me. Come up with some consistent routine to show your disapproval. What I do is shake my head and say "no sir": the exact body language and sounds don't really matter, just use the same position, tone, and cadence every time so they know that when you make the sound / gesture you're not amused by them. If they persist in pecking or just getting too much into my personal space I'll gently but firmly move them out of my personal space with the bottom of my foot. If he wants to kick or peck the bottom of my foot let him have at it as long as he backs off.
If he's really beeing a jerk, sometimes you'll have to move him a bit more firmly. One time I had a hen walk up behind me and for no reason at all she pecked me hard right in the calf, without even turning I put my foot under her and launched her a couple feet away from me. She never put a beak on me again.
Another time I had a rooster run up to me and peck me hard on the tip of my middle finger. My reflex was to yell "WHAT THE ****, DUDE!" He ran off like Colonel Sanders himself was on his heels and never did anyting like that again.
You never want to take a pose where you're leaning forward and staring into their eyes. For one thing, you're putting your face that much closer into beak or spur range. For another, it's a mirror of a rooster's "challenge" pose which is a prelude to a fight.
Also learn their body language and tones. Roosters will growl or even make a sort of croaking roar (like a miniature death-metal singer) when they spot a threat or don't like something someoby is doing. If they make what people mistakenly call the "egg-laying song" (it's really an escort or distress call), that's a warning sign, too. A rooster making any of those sounds in relation to your presence or activities is NOT happy with you.
They also will do this weird head-shake when they're upset by something, it sort of looks like they're simultaneously shaking their head "no" and head-banging to a rock song.
Other behaviors you want to watch out for is stalking you, staring at you intently from a hiding place, or if he tries to herd or chase you: one version of the "rooster dance" is they'll do this weird sidways shuffle at you to try to get you to move in a particular direction. Other times they'll walk up to you and try to chest-bump you or stamp their foot at you, trying to get you to run. Again, never move for him, make him move for you.
Other forms of posturing include snappng their wings loudly, or repeatedly crowing at you. A lot of times the above beaviors get ignored or accidentally encouraged, which leads to their aggression escalating.
Another option for modling Rooster behavior is simple bribery: give him some extra treats to distract him before he gets aggressive, especially if he's aggressive because you're colleting eggs or refilling the feeders.
Note that all bets are off if he starts full-on attacking you: hackles raised and repeatedly flogging, kicking, and pecking you. There's no rehabbing that kind of crazy.
Another thing to note, even if you train him out of this now, likely he will always be "touchy." If you've got small children, a lot of visitors, or yappy, high-strung dogs you will have some serious problems with him anyway. One of my current roosters I would not have kept if I had kids because he's rather high-strung and over-protective and little kids would push every one if his crazy-buttons.
