Hi I am new to having chickens and I recently purchased four from a friend. She had too many and I took two Easter Eggars, one Polish, and one silky. I believe the one Easter Egger is a hen but I'm concerned that the black one and the Polish one are roosters. The silky I believe is a hen..... but I'm not 100% convinced of anything. I am brand-new to owning chickens, And have been learning over the past week. If anyone can help me with the gender of these I would greatly appreciate it. They are 9 weeks old.