What causes color changes in comp and wattles?

[m_shuman]

I have a 20 week old Delaware and she has a huge red comb and wattles. She is already laying eggs. I notice that the color changes throughout the day? For example I was just out there and it was pale pink almost flesh colored and sometimes it is brighter red than my roos? She just laid an egg. Does this have anything to do with it?

 

[Andora]

Mine change color when they are very hot, dehydrated, or sick. I have one old hen who gets swollen on hot days (like she needs dialysis or something!) and when her angles are swollen then her comb gets really pale.

 

[Hinotori]

My cuddly lead hen gets super pale when she's snuggling and I'm petting her. After she jumps down they will return to the bright red. Since noticing this on her, I've noticed they all get pale when they are relaxing.

 

[Kaeta44]

Combs cool the chicken down by the blood circulating between comb and the wattles. So changes in temperature will lead to either more or less blood in the combs and therefore the colour will change.

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