One last comment before my summary oI still have two eggs in the incubator. Yesterday, I pulled two out that had very big airsacs I assumed were underdeveloped. Unfortunately, they had developed, but had stopped absorbing their eggssc. Fully grown, fully feathered. Little black one and another black backed (Like Hitoko).
the two remaining eggs are on day 22- one is too dark to see ANYTHING, the other, I can just barely makeouta healthy-looking airsac. Neither pipped externally, and of course I have no idea about internal. Do you suppose they’re just late deaths?
(Hitoko and Kazuko are doing great. Getting more alert, playful, and curious every day. 3 days old!)