I have four B. Marans hens on the shipped eggs. 5 each. I switched out eggs they were on and put four in the incu. I like a hen that pecks you hard when you mess with her. It shows she's serious. Only one is like that.
Frenchy is still on hers but I've forgotten when they 're due. She doesn't mind a check now and then. I'll be checking daily from now on.
The incu is day 16.