Another update: I took the kitten to the vet and it is a female. She is estimated to be between 4 and 5 months old and is 4.6 lbs. She has received her rabies and distemper shots and has been given deworming medication. Fecal sample looks good, but awaiting final confirmation. She also received tests for feline AIDS and Leukemia - will get results of that with the stool sample results, I imagine.