I have a 3 sexed Welsummers(Pullets) and 4 Black Copper Marans. They are all about 6 weeks old. I am trying to figure out if the Marans are Pullets or Roos. 1 of the 4 BCM's hangs with the 3 Welsummers all the time. The other 3 BCMS always stay apart from them. The 3 BCM's are a bit larger than the 4th. Their combs and wattles are slightly larger than the 4th as well. Would you tend to beleive then that they are Roos ??? The Three: The single: Thanks !!