Thanks. I was curious so I actually went digging too.
I found many studies on the physiological aspects of stress in chickens. The biggest one is that roosters in particular who experience stress growing up show a delay in developing sexual maturity and mating behaviors, and fearful and aggressive behavior towards unusual stimuli. If anything, I'd say that makes this topic proof that he's doing rather well.
But I couldn't find much on chickens in pet situations of course. It's not exactly a well studied subject.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4433227/
I found many studies on the physiological aspects of stress in chickens. The biggest one is that roosters in particular who experience stress growing up show a delay in developing sexual maturity and mating behaviors, and fearful and aggressive behavior towards unusual stimuli. If anything, I'd say that makes this topic proof that he's doing rather well.
But I couldn't find much on chickens in pet situations of course. It's not exactly a well studied subject.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4433227/