None of my girls have a crest yet. May be it is to early for them.
Interesting...mine hatched on 2/18 too. Wish I could remember what color their bands were, I think blue but I wouldn't swear to it. I took them off they day they arrived since they were so tight. In visiting other sites I see the girls have small crests by this age and mine don't; I am so disappointed. Hopefully the male can pass the trait on to his daughters. Can't afford more until next year.