I got my order of 12 chicks back in March, 2 of them Ameracaunas/EE. At day 3 or 4 I noticed one of them was really aggressive to the point that I named her Attila the Hen. Well, she turned out to be Attila the Him. Although he doesn't seem to be overly mean, he definitely is still aggressive. The other EE is a nice sweet and sort of shy hen.