Help! Does this duck egg still look good.

[Angel9_999]

Mama duck has been sitting on the egg since about June 5th. She had two but got rid of the other egg. I found it busted in middle of pen and was clearly bad. Smelled rancid or something. So she’s been sitting on just the one the last 4 days. I’m concerned this one has gone bad too. Please any help.

 

[Isaac 0]

Looks like a goner to me.