Rigor Mortis is noticeably more rapid in birds than in humans, and other mammals. With mine, the timeframe is usually around thirty minutes after death. I believe there are strong variables between times.
I have three eggs left in the incubator, two look like late quitters there is one that was shadowing last night, so I'm guessing He'll hatch in a couple of days or so. I did add some eggs to the bator a few days after I started incubation so I'm assuming this is the one.
Edit- I see now what...