I think a person should look for Type color, weight, comb, beak, head, color of the feet, Feather quality, Tail angle, size of the tail, length of the back, size of head, Type, weight, should be the same in the utility/barnyard as in the show bird. The beaks and heads in utility chickens are often longer and narrow they look like a snake head IMO. The feather quality of a show bird is larger in width, and show a healthy bird. I am not saying utility birds feathers do not show a healthy bird because they can and do. The utility chicken is often lighter than the mahogany color. Color should be consistent in the bird no light spots. The comb is another thing the comb should be as true to standards as possible you have combs that are big and small with no visible peas or peas that are not in rows or all over the place in utility chickens. .If a chicken is show or utility they will show traits of the SOP. Utility Chickens are not as defined in their traits as show chickens. Show chickens are groomed and bred to show standards, of the SOP. This is my two cents worth and my opinion only.