A cat being cared for by the NoCo Kitties rescue in Colorado was found to be a male calico kitten, a feline so rare they are known as "unicorn" kittens. Photo courtesy of NoCo Kitties/Facebook April 25 (UPI) -- An animal rescue group said one of its volunteers is currently caring for a male calico kitten, a feline so rare they are often called "unicorn" kittens. NoCo Kitties in Loveland said the kitten and his siblings were born in a Weld County shed and were turned over to the Weld County Humane Society before coming to NoCo Kitties. Volunteer Alli...