]I have 2 Buff Orpingtons and 2 Barred Rocks. They are appx 2 weeks old. I got them on day 4 and they have been together the entire time. They are all supposed to be female, but we have serious suspicions regarding one of the BRs. Sunday morning I found one of my BOs (Lucy Loo) favoring her right leg and seeming a bit weak overall. She had no visable injuries and did not mind me manipulating her legs and wings. I was able to get her to eat a bit of yogurt and drink some water from a dropper and I observed a normal poop, so I separated her from the others while I was at church and hoped for the best. By the time I got home she was up hopping around, happy as could be. She still seemed a bit weak but everything else was normal so I returned her to the brooder with the others assuming maybe she just got a little frisky and fell from the little roost I made them. But, then today I had all 4 outside for a bit. They were all in the brooder, and I noticed that my OTHER Orp (Puff) was acting like the other did yesterday. I immediately pulled her out and checked her over. Again I found no obvious reason for this behavior. I spent a long time watching them all together. I saw one Rock peck at a Orp. There was some stepping on and chasing going on but it was both breeds, not one sided attacks. Nothing horribly aggressive that I could tell. They all stick together for the most part moving around the brooder together. They are all eating and drinking. Poo seems normal. I clean the brooder daily and they get plenty of interaction from myself or my daughter. My 2 theories are: 1. They are growing bored and are acting out. 2. They are too big for the brooder and taking it out on each other. (They are currently in a large Rubbermade container.) Or my Rocks are just meanies!! Both my Rocks are visably larger than the Orps and heavier too. Any ideas or advice? Thanks!