Hi! I have a question for y'all. I have owned my six sweet little calls for about 4 weeks now, and have figured I have 2 snowy, 2 butterscotch, and 2 black bibbed. Two are MUCH bigger than the rest, while another is bigger than the smallest two, but they are all the same age. Could the bigger ones be the males? Do males grow faster than the females? That would mean I have maybe 3 males.