Thank you for this information. I let all of the chickens roam in the backyard which causes a problem when i want to gather eggs.Mine is in a coop/run that I never have to physically enter. If I do need to handle him, it's at night with a flashlight.
I have a Dutch door at the entrance of the coop (which is inside a shed). The nesting boxes are right next to the door, so I just reach in and grab eggs. He never bothers me while doing this.
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Some - not if they're already aggressive to adults, though.