Duck eggs on lockdown, one’s a strange color.

[DingusDuck]

The greyish color is what I’m talking about. I moved the egg farther away from the rest in case is is rotten. I also candled it and the duck looks just as developed as the rest. Is this cause of concern of it turns that color?

 

[nuthatched]

It could be bruises from a pip

 

[AshVau22]

In my experience they start to turn a darker color on one end when they are about to start hatching. That egg looks like it will be starting the hatching process soon. Best of luke.

 

[DingusDuck]

Thank you everyone!

 

[DingusDuck]

Update: I think the egg has externally piped along with a few others, I will update again tomorrow.