I'm not @junebuggena but I have an EE out there right now which had very light colored legs as a young chick. They darkened as she got older. They still are not a truly slate or green color, but she sure lays pretty blue eggs. If the stupid rain ever stops I'll try to go out and grab a photo of her.
They DO love that sod, don't they? It's so comical to watch them. Around here it goes the same way every time with every batch of chicks. I put the sod clump in (don't have a container for it - I should think about that - and they run like auld Cooty was after them. They huddle in a group and stare at it, waiting for it to rise up and get 'em! Then one will edge in, give it a peck, then two, then dig in. Within seconds here come the rest of them and it's a free-for-all!!
@Finelyfound I am so sorry you lost 2 chicks, and to have one be your son's favorite makes it doubly hard. I don't know what could have happened - I still use the cave configuration so I've never had chicks using the open sides concept. The most chicks I've had at one time under MHP was 15 so I'm also not familiar with brooding so many at once. I sure hope someone who does use the open sides design can answer your question on how to prevent it from happening again. If the sides are open, the chicks on the outside of the chick pile might have tried to get as far away from the open area as possible, and those two got crushed in the center. Perhaps putting a towel over the top that drapes down the sides, holding in heat right to the edge, and giving that feeling of closed in security might help. Since the sides would just be loose, soft fabric, they wouldn't have any hard sides to get trapped against, but it still provides the feeling of being all they way under something. That's all I can think of. I'm so sorry.