My one black australorp has been mean and flightly since I got her when she was 2 days old. She was always difficult to hold and she'll only briefly dart in to grab a mealworm. I picked that breed because the breed as a whole was supposed to be calm. The little black one looks more like my marans chicks than my black australorp. I'm certainly no expert though.
Black Australorp:
Black Copper Marans:
Black Australorp:

Black Copper Marans:
