Also note that many chickens are sold as "Americana's" ... most are actually really "Easter Eggers" (EE) ... since you bought these from a farm/feed store ... I would imagine that they are EE's ... while not huge, they are still considered LF, and the hens could range from 4-6 pounds when mature at one year old ... EE's really are a cross breed, and could be a mix of alot of different breeds, so there is lots of variety between even siblings ... if they are female ... they will lay lots of eggs for you ... maybe not like the Isa Brown's or Leghorn ... they may even lay different color eggs, hence the nickname "Easter Egger" ... various shades of brown, olive, or blue ... only one color per chicken though.