I have a flock of chickens that showed up at our home in the country. We started with 2 Roos, a hen, and 5 chicks. Since then the momma hen and 1 of the chicks were killed by predators. Two of the chicks are definitely cockerels. One of the chicks is definitely a pullet. I am not sure of the 4th whether it is pullet or cockerel. I am thinking it is probably a cockerel. What do you think? Thank you.