I am having this problem with my current hatch. a few of the eggs are getting dark swirls. 1 hatched on day 27 and 2 more on day 28 then nothing from the other 9 so far and tomorrow is day 30. These were mail ordered and a barnyard mix. The 3 that hatched are all yellow. At what point should...
Can anyone tell me if it is normal for duck eggs to darken or get a dark swirl design before hatching? Or does this mean they will not hatch. There were some pretty bouncy embryos in there 2 days ago. 3 eggs hatched on the target date at 28 days. All were put in the incubator at the same...