Here's my new chicks I got today, they're suppose to all be pullets. 2 RIR 7 wks old, 2 BA 6 wks old and 2 Delaware 4 weeks old. They're in this temp cage while I finish their coop/run and their feeder won't fit in here. One of the RIR has very few feathers on his back do you think he's a roo or has something wrong? I posted his pick under the Injuries sickness titled "what's wrong with her". As always I appreciate everyones help.