Red colored spot on egg?

These eggs were laid on 4/10. 88-89 degrees and 90% humidity. Can anyone tell me about the one with the reddish spot? It looks ok otherwise when I candle it?

http://ball-pythons.net/gallery/file...8/7/4/eggs.jpg

http://ball-pythons.net/gallery/file...8/7/4/eggs.jpg




Thanks

Sorry I don't have any input but I would love to hear what others say!


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It's called a "window", but it is a spot that wasn't properly calcified.

Should hatch just fine and give you a peak at the developing baby.

Yep a window. I seem to have 1 or 2 eggs with a window every year.