Fertile or not fertile?

[Knighstar679]

I am trying to guess if these are fertile eggs from this duckie. This is a new layer so I am trying to guess when to start setting her eggs.

 

[humblehillsfarm]

It looks like maybe the one on the middle right might be... but the rest don't look like it. The white part usually has a white ring around it so it looks like a "bulls eye". I'm interested to see what others think.

 

[Knighstar679]

It looks like maybe the one on the middle right might be... but the rest don't look like it. The white part usually has a white ring around it so it looks like a "bulls eye". I'm interested to see what others think.

i was afraid of that. I wasn’t sure I was seeing things right so I wanted a few extra eyes to double check my findings.

 

[em_dawson]

Here, I edited the picture to be able to see the blastoderms better. To me, it looks like 4 of them could possibly be fertile, as they have a faint ring/halo around that middle dot. I’m not sure if I’m looking at the right spot on the remaining egg, the one on the very top, but if I am, I’m seeing an uneven blastodisc that would indicate infertility.