I've had her and her brother for about 4 years and they do mate together and lay eggs. Sammy has always had a bald spot on her head, right under the feather crest...I never thought much of it (just wondering about it now). Recently, her chest feathers have begun to turn pink...and it looks like it's becoming darker and spreading :( I'm really worried...plz help

imghttp://i29.tinypic.com/in62ps.jpg/img
(the pink/red spot)
imghttp://i29.tinypic.com/drfnmp.jpg/img
(the bald spot...I'm not too worried about it, more curious)