I have a total flock of 6 nine month old girls out in my coop and run right now. they are all large fowl birds. last week at the poultry auction i took home a golden Seabright hen. No idea how old she is but her body shows a lot of bleaching. so i'm guessing a year and a half to two years. She is Tiny compared to my other girls. she is ready to be integrated into the flock now but i'm hesitant due to her size. now rewind. i hatched out a bunch of chicks for the new years day hatch this year. i have 3 left. they're 9 weeks old and already bigger than the Seabright. I would feel better about integrating all 4 of the birds together with my 6 big ones to cut down on the pecking. This should work fine, except that my birds are in a coop and run and rely mostly on bagged feed for food. My big hens eat layer feed. and as far as i know if the 9 week old babies were to eat nothing but layer feed, it would mess up their systems. So the question is, what do i do?