we bought 2, 7-8 week old bantam chicks a few days ago and the breeder said he was pretty sure there both female. one is smaller and furthar behind developmentaly that the other but yesterday i noticed its wattles looking redder and it has a tiny comb. theres no evidence of spurs, long feathers or any other of the signs just the comb. the breeder said if theres any problems then he will swap it for another but i just wanna check first. can anyone help?