I think any animal that can devise a plan to get what they want, weather its treats or whatever has got to be at least semi-smart. I know that mine do things that are not learned tricks or a conditioned behavior, because they do somethings that I def. do not encourgage them to do in fact I try to block them at every available opportunity! When I block one avenue they use to get something or somewhere so they can't use that, the will find away around it and get where they want to be everytime! LOL I love to stand back and watch them figure things out, they cock there little heads this way and that and walk around whatever it is there looking at checking out every angle then ......... go for it! Then I have to go in and figure out away to block them again, Its like a chess game LOL! I got some pretty smart dogs, but they atleast give up and let me make the rules, chickens.....they got a mind of their own. ( I do have to admit that some are more enginutive (sp) then others. I like to call them the leaders of the pack! If they figure something out, the others are sure to follow!) You just gotta love em!!
Somehow somebody forgot to mentions that chickens were so fun!