I’m going to post the results so people can maybe learn from it.
24 eggs went in
24 were fertile
1 quit early (7 days)
1 quit late and never pipped
22 resulting birds (11 female, 11 male)
1- the head spots had no correlation to sex
2- all of the chicks have crests
3- barring WAS...
I am relatively new to chickens ( About 1.5 years) and completely ignorant about chicken genetics in particular. I have a degree in genetics but never ventured into poultry. I was given a "free chick" from the hatchery which I purchased 6 barred rock hens ... It turned out to be a crested cream...