I have a two year old Isa Brown hen. For the past couple of days, she has been lithargic. She's not running around like usual, especially when we throw out scratch. I live in Michigan and it has been cold, but not below zero. They have an enclosed coop that keeps out the wind and a small heater in the coop. We see them in the coop at night when it is cold, however, there have been times when they are in the fenced in area when it's raining. Today I went to check on her and her wattle is black and her beak is black. I grabbed some vaseline to put on her wattle and when I did, the black came off and it was bright red! Brighter than her usual color on the wattle. She didn't move hardly at all. I threw some scratch to see if that would get her to run, but nothing. Her whole face just looks dull. Could this be more than frostbite?