Endangered Species are those whose prospects for survival are in immediate danger because of a loss or change in habitat, over-exploitation, predation, competition, disease, disturbance or contamination.
Threatened Species are those who may become endangered if conditions surrounding them begin to or continue to deteriorate.
NJDEP maintains a database of Threatened and Endangered (T&E) Species in NJ. If you spot a T&E, you can report it to DEP to be added to the database, click here for the form and submission instructions: https://www.state.nj.us/dep/fgw/ensp/rprtform.htm