So I ordered some Black broilers from a hatchery 14 weeks ago and none of the chickens are big enough to butcher. I have ordered Black broilers in the past and butchers them at 10 weeks and they were 6-8 lbs. All my broilers in the past had Yellow legs and all of this bunch has black legs. Did I get the wrong birds. Can any one tell me what kind of chickens I did get. The biggest chicken I have is 6 lbs.