We just ordered some birchen cochins from a hatchery. We got 3 and now that they are going to be 2 weeks old wednesday, I noticed that their wing feathers are growing in . . . questionably? One of the baby chicks' wings have grown long enough to touch the tail feathers and the other two baby chicks' wings are just barely growing out (like only half as long as the other one). Is this a sign that I have a girl and 2 boys? I didn't think cochins could be wing feather sexed . . . but then again, I'm not sure who can or who can't lol! I just need some feedback to find out if my assumptions are correct.