I did a quick egg-topsy of the four eggs I removed.
Egg 1, which I always had doubts about. Not fertile or too damaged from shipping to develop.
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Egg 3 which was an early quitter that had the black blob of death in it at 14 days. The dark matter is at the bottom of the photo.
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Egg 5. This one was just so dark I couldn’t see anything. So waiting to see if it was full of chick on day 18 was the right thing to do. Either it wasn’t fertile or too damaged from shipping to develop.
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Egg 8 which I didn’t post in my initial photos because it is the darkest of the really dark eggs. But it wasn’t full of chick when I candled it tonight, so I removed it. It also was either not fertile or too damaged from shipping to develop. Look at how dark that shell is! I have 2 in lockdown that are just as dark, and I REALLY want those chicks.
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Now it’s time to wait for day 21. I will post updates as things progress.