I have a question for those of you who are experienced with chicks. I have some bantam chicks that I bought "straight run", eg unsexed, so it is not known if they are male or female: two silkies, and 5 mille fleur d'uccles. In these two groups, I have noticed that one of the silkie chicks is significantly larger than the other, although they are the exact same age (12 days), and the same breed. Of the mille fleurs, two of the five are significantly larger than another two, and one is in the middle. Again, same exact age (14 days) and breed. Do you think that the larger ones are males, or are there size ranges within the sexes as well?