- Monkey Lookout
Hi and welcome to BYC.
It may be caused by the hen recognising that they are not her chicks. For further reading, I'd suggest typing something like "adding chicks to a broody hen" and seeing what pops up.
I'd suggest that you intervene and remove the 3 chicks as the broody will refuse to keep them warm and deny them food.
All the best
- Love is Silkie soft!
Welcome to BYC and the coop! There's a lot of great peeps here! Feel free to ask lots of questions. But most of all, make yourself at home. I'm so glad you decided to join the BYC family. I look forward to seeing you around BYC. Yeah, I'd separate them. Like CTKen suggested. You don't want them getting hurt, chilled or worse starving. Good luck with them and it's not your falt. Hen are particular sometimes.