You really should start your own thread so more people will join the discussion.
There is no better caretaker of baby chicks than a broody hen. I see no need to separate them.
You should be able to keep all of the later hatchlings together with no problem. Usually chicks are good about accepting new additions for the first four weeks. Occasionally you get a bully chick. Most of the time you can correct its behavior unless it's deeply ingrained due to genetic...
What you have going on here, being a novice dealing with a broody hatching eggs, is called a staggered hatch. It never works. This is why we take measures not give additional eggs to a broody once she starts sitting on eggs.
It takes 21 days exactly from the day the broody begins incubating the...