I have had single chicks before, sometimes I will put in a test egg in my incubator to see if the egg is fertile.
this little guy had to wait a week for the other eggs to hatch. but I put in his pen, a mirror, wiggly flowers, and a stuffed animal- gorilla it slept under.
I put this pic in...
one of the first hatches I had I had too much water in my incubator, (maybe 2 pie pans) because people kept mentioning hydrating, anyway I think I had 4 dark brown eggs and one white egg in the incubator, and when I would candle, I only candled the white one because I could not see in the...
sometimes there is no movement in an egg when they are getting ready to hatch, but if you are at day 22 and still have a large air sac that doesn't sound real good but I have had chicks hatch on day 23. 102 is fine for still air.