So I stopped at the other area TSC today and they had some different birds than what the other store had. This store claims to have White Plymouth Rocks and Crested Polish Pullets. Everything else was straight runs which I won't do again after 80% roosters last time. The other store had Americana Pullets which I'm told are just Easter Eggers. My question is are these birds auto sexing, and are they decent breeds? Should I grab/avoid them? Anything I should know about them?