When does the crest start to develop in Crested Cream Legbars

[Finnie]

I've only had maybe 5 CLs, but none of mine got crests until they were bigger and fully feathered out. It was like the crests came in with one of the juvie molts. Being new to chickens at the time, I thought that was normal.

 

[JudysMuscovy]

Now that I know the one on the middle is a created cream leg bar and she is 3 weeks old in this picture