Crevecoeur egg?

[orbray]

I have a mixed flock of Australorps, Crevecouers, Silkies, Easter eggers, RIR, and some of barnyard mixes (Wyandotte/unknown, Buff Orpington/unknown). I witnessed my silkie laying the egg on the left but have no idea who laid the one on the right. For the record, I have never seen the crevecoeur go near the nesting boxes. And I am pretty sure I can eliminate the EE and the Australorps. Any Guesses?

 

[nuthatched]

EEs can lay all colored eggs so it could be an ee, or the barnyard mixes. I think everything else lays brown or tan eggs. I'd say you're right about the crevecoures until proven otherwise.
Edit, according to a quick search , they lay white. So I think you're right