Been broody for 10 days. Adding eggs!

[Summer Perseid]

Will she sit on them for the required 21 + 10 = 31 days until they hatch?!

 

[Lady of McCamley]

Yes, likely. Almost certainly if she is a Silkie, Cochin, or Game hen.

Nature has programmed hens to brood for an average of 4 to 5 weeks to ensure hatches.

Usually hens take a couple of days to decide whether or not to go broody. After a week generally they have really settled, so 10 days into the brood, if you set now, should be fine.

The only time I get quitters is with large fowl commercial lines. They do not have good genetics for brooding so often bail at about 2 weeks of time, or fiddle about half-way brooding, so there is risk if she is a commercial line and a first time gal (unproven).

Good luck with brooding. It is a lot of fun to see mom and the chicks.
LofMc

 

[bobbi-j]

I'd have a backup incubator ready just in case.