This may be impossible because of the wide range of breed combinations, but if we could get an educated guess as to which chicks are pullets and which are roos, it would help my daughter's experiment for school. They are a VERY mixed flock mixed flock. Even their ages are mixed, we think. Their feathering-out definitely happened at different times. I get that this could just be because of the mixed breeds The littlest is probably a bantam after all, but is also younger. We were told they all hatched Jan 15. :/ According to their breeder, the parent stock is supposed to be pure and she has Hens - RIR, Red sexlink, Barred rock, Americana and Jersey Giants and one leghorn roosters she has a Road Island Red cross (who's boss roo) a black cochin bantam roo and then a juvenile Americana roo (that may or may not have been old enough to woo some ladies) 1- Cheep (has spent a considerable amount of time sleeping in hoodie front pockets, 2- Sunny 3- Whitewing 4- Mango (who is a bit of a spaz but very friendly) 5 and 6 - Shadow and Hawkeye. We can't figure out Shadow's feathers. They were always more black than Hawkeye's, and they took longer to come in, and now that they have they are sortof ragged looking. Both have been less interested in being held than the others. 7- Owlett is red laying down next to Sunny. Another cuddler. Without question, we have more pics. these are just from a few minutes ago.