As far as I know, only my regular chicken attempted to crow so far. Which is amazing and adorable to hear. I just got back from my 3 week vacation in Las Vegas, and I hear Zeus(the regular, not bantam chicken) try to crow. It didn't sound quite right, but still, he's trying. <3 But is there a reason the Zeus, the normal sized chicken, crowed and not the bantams? I didn't stand out there long, just to take care of their needs and such, but Zeus tried to crow like, 5 times while I was out there. The rest just...clucked I guess? They didn't peep, like I'm used to, but it was a different noise. Also, if I post picks, can you help me get the breeds down? I really just don't know. They look old enough to tell, if you're smart enough(not me )to know breeds well.