I have a 5 month old hen who fits the Orpie breed to a T, tho she was sold to me as a hybrid. From time to time, her comb will turn a purpley blue color around the edges. It's not every day that it does this and it's only about 1/16 of an inch on the edge. It doesn't always look this way and does return to the bright red color of the rest of it. Is this normal or should I be watching her for other things? She eats and drinks fine and is very active. Keeps her feathers in great condition, eyes are clear and she's as big a diva as ever. Just wondering if it could have been the heat causing this since we just got over the Texas heatwave of '22 here.