Chad.... not the easiest time of the year to get a broody hen,,,, perhaps you should let 6 eggs in a nest to tempt one of them into sitting on them,,,, worked for my Cochin hen.
and if you're getting that many eggs, maybe you need to run your extras to one of the auctions,,,, the one on route 61 sometimes bring $2 to $2.50 a dozen for brown,,, they start the auction at 6:30 every Saturday evening,,,, could help buy your feed. Eggs keep in the fridge a long time,,, could probably run them up every other Saturday,,,, just drop them off and leave,,, no need to stick around and buy more chickens....LOL
Sally,,,, I must have missed your sexing chicks question,,, can only guess you're wondering about those Comet and BCM crosses,,,, not sure if the spots on the head help determine sex since they are crosses. I did notice in your pics that the black ones have less yellow than most of the purebreds I have had hatched here,,,, so there are differences in the crosses.
Sorry I can't help more with that.
And I think there's a chance your GLW is a hen,,,, doesn't have the neck feathering a roo would have at that age.
Your Partridge Brahmas have great color,,,, wonder if I could get that on Cochins ??? I have a blue hen, a partridge hen, and a black roo that is displaying some partridge coloring,,, HMMM !
may have to mix them up a bit after studying that color genetics you listed.