Which eggs are fertile?

[ellasflock]

Hi so I am supposed to be on day 17 of hatching some Silkie eggs, out of 6, 2 were fertile but i candled them today and for some reason it seams that they are at completely different stages of the incubation process? I am not sure if one has died or something, but if anyone can tell me if they are still alive that would be great! There is one dark egg that is hard to see through and the other egg seems to have an embryo but it is on day 17 so I’m wondering if it has died, or is it meant to look like that?

 

[Northwest_Wannabe]

Can you take new photos with the light shining though the air cell? : D

 

[ellasflock]

It is really difficult to get pictures from the air cell but here is a few that I tried to capture...