My neighbor's mother thought she was doing us a favor by bringing us 10 new chicks from Miami after three of my big ones were killed by a dog. We live in Western North Carolina and wanted to wait until March to get new chicks so we wouldn't have to wait too long to put them outside. She doesn't know what breed they are and neither do we. They are seven, almost eight weeks old now. Three of the chicks died shortly after we got them. We were sure that three of the remaining were rooster and gave them away. Now we're beginning to wonder if they are all roosters. I have been introducing them slowly to my other three big ones. The big ones peck at them, but a couple of the little ones don't seem to have any fear. They bow up to the big ones and even peck back. Would this be normal behavior for young roosters?