What happened here? I'm so confused. These are our eggs from our four girls. From left to right we have a jersey giant, black sex link, white leghorn and a barred rock. The top row contains their normal eggs (from earlier this week) the bottom are their eggs from today. Is this normal?

We have three silkie hens around 23 weeks old, but they didn't have access to the nesting box (it's too high) so I don't think this would be one of their first eggs. Any ideas?
We have three silkie hens around 23 weeks old, but they didn't have access to the nesting box (it's too high) so I don't think this would be one of their first eggs. Any ideas?