Gertie is what we believe to be a Golden Buff. I noticed today that she is getting brownish spots on her tail feathers. Is this normal? Could she be mixed with something else? Pretty new to chickens. We saved her when she was only about 4 to 6 weeks old from a very busy road in our city. All we knew is that we didn't want her to get hit, next thing you know I have a chicken in my lap and we were taking her home!! I just love her! I never in a million years thought I would have a chick, but I do now and now forever changed! Thank you for any ideas and advice on why she's getting these markings. She just started laying eggs too btw! Yay, eggs!