When do most buff orpington eggs hatch?

[XseankellyX]

I am incubating 9 buff orp eggs in my rcom 20
In your experience when have buff orpingtons hatched? Like... By day 21 or are they the type of chicken that will likely be late? The temperature is 37.5c (forced air) and humidity is 45%

 

[sumi]

I've never hatched BO eggs, but I have hatched different breeds and different size eggs (bantam and large fowl) and in my experience small eggs sometimes hatch early (day 18-20) and LG eggs hatch anywhere from day 20-25. The average is 21 days for most chicken eggs.

 

[XseankellyX]

Thanks sumi, I was just wondering cause some eggs hatch later than 21 days. They probably don't though.

 

[Arielle]

Is this your first hatch with that thermometer?? If it is off a tad, that too will influence the length of time.

 

[XseankellyX]

No it's an rcom 20 pro incubator, it's not off I checked with the thermometer on the screen and 2 others