March 22, 2020 Deborah Perkins Phenology Notes Fox Kits Being Born March 22, 2020 Deborah Perkins Phenology Notes Right about now red fox vixens are giving birth to a litter of four to five kits (even up to 10 in rare cases). The number of kits born is influenced by the number of foxes that occupy the particular area, and their food supply.