you are right about the hens, roo and the feed.
my broody pecked me when I tried to take the feeder away. I guess she is not that bad. and the chicks are little piggy eaters! their wings and tails are fully feathered, white with black spots. I hope they are girls. NNs usually develop tail early if girls, but that is at the age of 4 weeks that we can say. although I have 3 mutts I bought as boys due to lack of tail at 4 wk old. I am glad about that as I still cannot butcher my chickens.
Just a little warning that in NNs, the early tail development = female doesn't really hold true. Out of my last hatch of 18 NNs, 12 of them have turned out to be males and out of those 12, over half feathered a long, early tail. I've divided my own flock into two categories based on body shape: The more streamlined body seems to feather out more quickly, tail and all, whether male of female. The boxier, meatier body shows slower tail development whether male or female.
Right now I'm running with a new theory about my NNs: My streamlined females appear to be my best egg layers, and since I'll ultimately be dividing my flock into meat birds and egg birds, I plan to experiment with breeding like body types in the hope of improving egg production in one group and meat development in the other.