Chipmunk Chicks
Free Ranging
No, my flock is not quite that well established yet, and I didn't have myself set up to let them be raised by a hen. (Although I have one hen in mind that, if I had been able to let her, probably would have sat and been a decent candidate. Hopefully in the future!)Did you raise them yourself or with a broody?
This above mentioned behaviour can stem from letting the little chicks perch and sleep on your when raising them without a mother hen. They will then see you as their mother and perch and jump on you as they would on their mother hen. And when bringing a dish with their food this can lead to them flying up to your shoulder to be the first to get to see what yummy stuff you bring.
But some cockerels get early hormonal overdrive and even try to mate with their mother hens and hatch mates, the earliest I saw with mine was a BCM at 3,5-4 weeks old.
So as I said, I wasn't sure if what I did was best. Either way I don't want him jumping on me, although I wouldn't say I read it as "aggressive" at the time. I continue to read his behavior through the lens that he is a baby.
Which is why I was shocked when he mated my hand! I was just holding him for a few moments, but not petting him or working him up at all. When I released my hand to let him hop back down into the brooder, instead he did what seemed like a shuffle dance, and left behind a little clear liquid on my palm. I was honestly stunned. What is that? He was 2.5 weeks.