Candled my dark eggs tonight- day 16 began at 7pm. 42 to start- one went bad and was discarded earlier 16 never developed and were discarded- cracked em all to be sure and no mistakes. 25 back to the bator- several were questionable, but didn't smell. What I saw in the majority of those I kept was a dark area taking up the 3/4 or so of all but the top of the egg with definate air sacks in the top. That's about it. I'm assumming the dark area is the developing chick?? yeah/neah? Thanks, Keystonepaul.