Almost a year ago I bought 8 chicks from a farm store near Boise. Bantoms and Rhode Island reds. Had one fatality, my cat, she’s since learned she will be removed from the new family if it happens again and it hasn’t. Not to mention my flock is almost fully mature. Another one of my chicks just disappeared and have no clue what happened. I’ve also acquired 3 seabrights but gave the rooster to a farmer that could properly take him in. Also have an Easter egger? Not sure what she is exactly but lays wonderful blue eggs on a daily basis. Anyway I thought I had 2 MIA hens but recently found one under my wood pile. ( I let my chickens free range) she was laying on her nest that contained about a dozen apparently fertile eggs as well as a chick barely a couple days old. So my daughter had to have them since I was removing the pile they were under. That night 4 of the dozen eggs hatched. And one last night. So she was hiding her eggs and staying out all night with them. My question is, how long until I can introduce them into the flock? Should I have taken them away from there momma? They are only about a week old but seem to be very healthy. Any thing I need to be doing for them? Thanks for any input in advance.