I am a first time chicken owner and i have 8 chickens that are in their 4th week. I picked out two Buff Orpingtons (hens) from the same box and named them Thelma and Louise. Thelma however has gotten a lot bigger and has quite a different color than Louise. She is much darker and more of a multi-color than the other Buff who is just one yellow color. Her comb is also much larger. I am praying she is not a Roo. Would love some feedback on her breed and if she is a he?