 They are also conducting field searches for new localities and research to identify the factors for decline.New Jersey's Division of Fish and Wildlife's Endangered and Nongame Species Program supported research by Kathleen LoGiudice.She developed a drug to be distributed through bait that the raccoons would eat, disrupting the growth and shedding of the roundworm parasite for about three weeks, effectively reducing the deposition of roundworm eggs near woodrat nesting sites, therefore reducing the threat of the parasite in woodrats.