i just recently got this Wyandotte. I think it would be a splash. Over the last several days, the wattles have started to come in. I have also noticed that s/he is always trying to jump on the little Silky. Both were hatched around the same time.
This is a boy from what I can see. I went through the same thing with one of our chicks. The comb comes in sooner than the girls. Watch how yours walks and how tall it is. That is what I did and now, he has been trying to crow.
Guess I am going to wait and see what happens. I know I can return it if it does turn out to be a male. I just hope that at least one of them is a female.