It's day 21.5 for me, and I just gave the cochin a gentle lift to peek under her. Out of 6 eggs, I could see 3 that were not zipped or anything, and there was 1 little grey and yellow fuzzy butt. I pulled out the hatched eggshell. That means there are 2 eggs I couldn't see, and anything could be happening with those. I hope at least 1 more hatches so the little grey guy has a sibling!