Before my hens went in to roost, one of them jumped onto the fence separating my backyard from my neighbor's. I grabbed her to prevent her from going to the neighbor's yard, and she seemed kind of mad. Upon further inspection, I discovered that the the tip in the back of her comb was a little purplish. Then I let her go and after running around with her sister, she went and drank a lot of water (it was a hot day today, around 90 degrees F) I didn't see this "discoloration" earlier in the day, and I only noticed it after I plucked her off the fence. The purplish part feels cold. Some other things that may be helpful: - She's a 27-week-old (around 6 months) RIR - She's been laying since June 3rd/4th (around 24-25 weeks) - Her comb started growing in a "bent" manner a few weeks before going into lay - Their coop is covered with blackout curtains - Acts perfectly normal - Shows no signs of illness - Majority of the comb is still bright red, except for the little tip in the back - Wattles are bright red - I think the discoloration decreased a bit after she drank the water? idrk, because it was getting dark. - She shook her head multiple times after I noticed. Is she just mad, or is it because of the hot weather? Or something else? She's a very important pet to me, and I can't bear to lose her. Any ideas?