I have 3 chicks that are 4 weeks old- RIR, Buff Orp, and a Cucko Maran. I watch them a lot cuz they are so cute and I like to see how they interact. In the past few days, the Maran has started lurching at the other two, picking at their feathers, pecking their beaks, and generally bothering them. The Maran is the most vocal and active and it even lurches at me once in awhile. Oh yah- she's also a tad bigger then the others. Is this the flock establishing the pecking order or is the Maran a jerk?