Well, none of my chickens are pets and they are all smart enough to know that Big Blue Hen = scratch and mealworms. Brown Leghorns always gonna be "flighty," which means when coyotes and hawks cone a-calling, they may be the only survivors, so from that standpoint they are are the "smartest." What I mean about my BJG, though, is that he always seems to be checking things out in a way nobody else does (he is my only BJG), even the other roo. He is alert but not flighty. Maybe "aware" is the word I want. He always knows where "his" girls are and herds them in a way Silverwings does not. They follow him (he's quite handsome, lol!) If something new shows up, he alerts to it and moves his girls away from it while checking it out, but does not panic. He's .... sensible. Okay now I probably sound stupid. But that's my take on him. Sometimes Silver thinks he's too close and kind of jumps at him, and George will keep his distance for a bit, showing respect, but he's not afraid of Silver. He'll go back and eat near him, but keep an eye on him. But he won't attack Silver, he just respects his space. He's respectful, but also kind of gutsy. I just like him.
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JK, lol. I knew what you meant! Your chickens do sound very smart. 
