Thank you! No, I traded for the eggs. I did not meet the parents.
So there's no way of sexing these?
They could (by random chance) be feather sexable, but most likely not.
They might be sexable by head shape, as Chookchicken said--it's not something I know about, so I can't say for sure.
Otherwise, you can mail off DNA for testing, or wait until they grow a bit and sex them by combs/wattles, crest shape, feather shape, crowing, or egg laying.