Hello all 
Is this picture show a rotten egg? I took it from a broody duck so I’m not sure when it’s do exactly but thereare
Nine eggs and something smells I can’t tell from candling. The dark is inside the egg. Also if when candling you can see the air cell and the rest is dark but no movement, does that mean bad egg or what?
Thanks so much!
Shannon

Is this picture show a rotten egg? I took it from a broody duck so I’m not sure when it’s do exactly but thereare
Nine eggs and something smells I can’t tell from candling. The dark is inside the egg. Also if when candling you can see the air cell and the rest is dark but no movement, does that mean bad egg or what?
Thanks so much!
Shannon