Odd thingy in duck egg??

[Chicken poppy]

Looks like mold to me.

OP, are they fresh?

 

[member 655102]

@azygous, @Eggcessive, @Wyorp Rock

 

[azygous]

It's mold. If you noticed the shell of that egg having a flaw in the shell, it was contaminated after it was laid. I would not feed it to a dog.

 

[New duck mommy 2021]

Looks like mould or meat spot
The yolk looks much darker then the others as well

 

[Sussex19]

Definitely looks like mold

 

[SmiYa0126]

Imagine cracking it right into the stove for a morning omlette.

I did that once, gagged soooo hard

 

[Nero70002]

And this is why we crack our eggs into separate bowls; Also egg shells.