The United States Fish and Wildlife Service has determined that Monarchs are indeed threatened with extinction, but will not be added to the US list of Endangered and Threatened Species. The official designation is “warranted, but precluded,” which means they fall in line behind 161 other species considered more endangered.
From USFWS –
What action did the Service take?
We have made a 12-month finding on a petition to list the monarch butterfly under the Endangered Species Act (ESA). Based on a thorough review of the monarch’s status, we determined that listing is warranted, but a proposal to list the monarch is precluded at this time while we work on higher-priority listing actions.
Is the monarch federally protected now?
No. Our 12-month finding does not protect monarchs under the ESA at this time. We first must propose the monarch for listing as either an endangered or threatened species, gather and analyze public comments and any new information, and using the best available science, make a final decision and publish a final rule. That process is deferred while we work on higher-priority listing actions.
What is a 12-month finding?
Under the ESA, when we receive a petition to list a species, we first make a 90-day finding, in which we evaluate the information in the petition to see if it is substantial enough to begin a review of the species’ status. If it is a substantial finding, we then prioritize the species in our evaluation process, and at the appropriate time, we begin a status review. The culmination of that review is a 12-month finding on whether listing is warranted, not warranted, or warranted but precluded by higher-priority listing actions.
Who petitioned the Service to list the monarch?
The Center for Biological Diversity, Center for Food Safety, Xerces Society and a private individual petitioned us in 2014 to list the monarch. We made a positive 90-day finding in December 2014 and launched the status review in 2016.
Read more questions and answers here on the USFWS website –
For further reading –
U.S. Fish and Wildlife Service Finds Endangered Species Act Listing for Monarch Butterfly Warranted but Precluded