Broody hen adopted my Banties???

[minkadink]

I have 2 banties and noticed that my one regular size hen that goes broody a lot was sharing a nest with her, even though the bantie used to pick on the full size. I keep taking out the eggs and picking them up and putting them outside. Then I noticed the reg. hen had the bantie tucked under her wing. Now the other bantie has joined them. She seems to be acting like a mom and the full grown banties are acting like babies!
Should I be worried about this?
Will they stop eventually?
They are spending so much time in the nest I am a little worried.
Thanks for any help.

8 hens
4 dogs
1 horse

 

[silkiechicken]

My guess is the banties jumped on the band wagon and are now broody under the standard.