There is a squirrel in my backyard that I feed an his whole underneath part of his body is pure white fur. The rest of his body is the normal red brown color.I live in des moines iowa. What kind of squirrel is this? I've never seen the white fur before. Its pretty. Also he has like a band of missing hair around the chest area that also appears to have a healing injury. If you could let me know what kind of squirrel he or she is it would be appreciated. Just curious. Thank you. Debbie