Just looking for a bit of advice here. I have a new flock of 7. I have 3 Ameracaunas, 2 light brahmas, and 2 red stars. At this point they are 13 days old. The Ameracaunas and red stars are getting their wing feathers in and starting to test their wings, but the light brahmas are noticeably smaller than everyone else and quieter. When I did my research, I thought these two would be the biggest. Are light brahmas just slow to mature & grow, or is there a problem? Any advice would be helpful. Thank you!