I agree that they are cute, but I wouldn't buy a bunch of them either. Probably a good idea not to keep the NN as your flock roo
If your black cockerel is out of my black roo and behavior is somewhat hereditary, then he should be well behaved. Joe took a while for the teenage hormones to calm down, but now he knows he has to woo the girls. He can still be sneaky, but not as sneaky as Squirrel, my lav AM rooster. He is bottom of the totem pole when it comes to the roos I have so he runs around (hence the name Squirrel) all day looking for opportunities.

