HI, new here and hoping someone can tell me what is going on. I have 2 buff orpingtons, maybe 1 or 2 old. They were given to me by a friend who couldn't keep them anymore. I have had them about 4 months with no problems. All of a sudden, the other day when they were wandering around the backyard, I noticed one of the them kept being aggressive on the other. Nothing has changed for them in awhile so I don't know where this coming from. It hasn't been serious yet, just the more dominant one pecking at the other and chasing her away. I have been nervous about leaving them in their coop together at night the past few days. I haven't gotten eggs for 2 days now, and I'm wondering if the stress is getting to them.
Any info or tips would be appreciated! Thanks!