Getting a cat spayed (female) in the winter- a feral outdoor only cat- is that possible w/o getting the cat frostbite or other? I have to get several cats fixed asap as males are going after the unfixed feral females. Most of my colonies have shelters but not all. The others have a garage to go into or under a house or in a business back yard etc....I do not want to put undue stress on them because of the shaved area and risk them getting too cold or frostbite BUT I have no where to bring them inside. My house is out of the question.