Eggs Hatching Very Early

[brahmapapa]

My eggs are due to hatch Sunday but are starting to hatch today, first one is out already and two more pipping, all the same breed. I have two other color patterns of the same breed and neither are pipping yet. They were all incubated in the same bator at the same temp and were randomly placed in bator. I keep 3 thermometers in the bator in three diff locations. This is a forced air styro type bator and the temp was kept at 100 deg. Can anyone explain why the early hatch under these circumstances. These are LF brahma chickens in case anyone is interested.

 

[FuzzyButtsFarm]

They hatch earlier cause you had a higher average temp during the incubation. My last hatch started pipping 10min after I put them into lockdown. A few hatched that night and the rest on day 19. Congrats on the new chicks.