To compare the Delaware chick with a mutt on the property of the same age ... this is the roundest chick I've ever seen, and has been since day one (though my experience with chicks is very limited!). Even in this cruddy photo you can see its legs aren't nearly as sturdy as the Delaware chicks' are. The mutts are a bit more feathered ... breeding of the mutts is the result of the hatchery birds mating randomly (but competitively!) in the big coop.