I love my Black Australorps too. I just find them a bit more bossy, sassy and vocal. Which isn't necessarily a bad thing. I wouldn't say they are aggressive or anything. They are friendly. They come running to the gate to greet me every time I come out. They like to see if I am bringing them goodies lol. They are great foragers. Mine are constantly scratching the ground looking for bugs and what not. I ended up getting my Buff Orpington, Priscilla, after I got the other girls. Priscilla is so sweet and fluffy and is a cuddle bug. She will come up to me and sit on my lap. I've never had to "make" her do that. She has always done so on her own. None of my other girls had ever done that so it just blew my mind. So I guess I am a little bias between the 2 breeds. I got my Buff from Tractor Supply. My Black Australorps came from a different store.
This pic is from back in Nov. She has just started laying this week. I love her.
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I bet whatever breed or breeds that you choose to get, you will love them!