Well, today I have noticed Olivia hanging with the big girls and her three chicks off to the side on their own......I've seen this each time I have been outside. She has always kept them in with the main flock (since they left the coop at week 2 or 3). So I am gonna guess that she has kicked them to the curb. I will watch when they are on the roost and see if they are next to her....but I know that a couple of nights I have seen where at least two of them have slept on top of the ñest box in the coop...it just didn't click that maybe she wouldn't let them cuddle. Actually I did notice them beside her last night and this morning there was baby poop on top of the nest box. So I guess this is it. I will focus on the fact that I may get an olive egg soon.
Sounds like they've integrated well (from Mom's introduction) and doing fine.
Hope they do lay a nice olive egg for you!
LofMc