Inkubator or Brooder

[Chickababy]

Hi we have some eggs that are supposed to hatch tomorrow that have been under a hen but we put the eggs in at different times because we misunderstood something and we heard that she might leave the rest if they hatch and we need to know if it is possible to put them in a brooder after they hatch so she would stay on the rest or do we need to get an inkubator for the ones that are already hatched?

 

[ChickenCanoe]

Did you put dates on the eggs?
Once some hatch, she'll leave the nest after a day or two to nurture the live chicks. Any embryos left behind will perish.
Her job is to keep live chicks thriving rather than hoping for unhatched eggs.
I've never tried taking chicks away to keep her on younger eggs. I'm not sure that would work.
Perhaps you could make a temporary incubator out of a cooler and a light bulb. Older embryos are more tolerant of fluctuating temperatures. You'll have to be there when she comes off the nest to grab the rest of the eggs and get them warmed up.

 

[Chickababy]

Would a 40 wat bulb work?

 

[ChickenCanoe]

That would depend on the size and insulative value of the container and how much air flow. You'll have to do trial and error. You want the eggs to be 98-101. Shoot for 100 at the top of the egg.