Just to my ear, none of them really sound like a hen yelping, I think it's just the sound pattern that does it ( same reason they gobble at crow calls) but imo a scratch box clucks best, a wingbone/trumpet type keekee and Jake yelp best, a pot type purrs best with a scratch box next. A box is loud but not versatile and a glass/carbon is waterproof along with the wingbone/trumpet. A mouth call is deadly cause it's no hands but it doesn't really make any of the common calls better than any other type. Overall I can do more with less with the scratch box. It's portable, quiet to carry, pretty durable, easy to use, can make most calls except keekee and can make soft calls when needed. All the above is my opinion, what's yours?