Yesterday I noticed this darker spot on the shell, today it's gotten a bit bigger. If you notice real close, you'll see the egg has 2 faint different shades. The wider part where the air sac is, and the ever so slightly darker shade on the botton, and on that darker shade, is the DARK spot. Is this the shell thinning out for baby to hatch out of? It can't be the pipping break, because isn't that where the duckling is and they're suppose to break through at the air sac?? I'm scared! Or is this normal thinning before hatching??
Please reassure me that this is normal thinning!
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