I was wrong about the heat spot but this is the thread I was thinking of. Could be helpful. Definitely post pics.
https://www.backyardchickens.com/threads/help-sex-my-ambiguous-cream-legbar-day-old.729142/
Thanks! I did post pics (post #4015 on previous page) of the three that I removed from the hatcher. Unfortunately, the fourth one looks the same. They don't have the chipmunk striping, and they all have the distinctive head spot.
They are cute and healthy little buggers, but I can't have a rooster.


Here's a pic of my two that hatched last month. First time hatching Cream Legbars.
Sorry for your loss. It is always hard to loose a chicken, no matter what the cause was. 
