Kitten season usually runs from May to August, but Tammy Davis, the director of the Washington County/Johnson City Animal Shelter, said in recent years it has been as long as March to November. While you may be eager to help litters you spot, Davis said patience is your friend.If you come across a litter of kittens, Davis said don’t automatically assume they’re abandoned.If their mother is an outdoor cat, Davis said she may hide from humans. If the kittens are dirty or wet or meowing, then that means you should call the shelter.