Final Post-delisting Monitoring Report for the Delmarva Peninsula Fox Squirrel (Sciurus niger cinereus)

A Delmarva fox squirrel reaching for buds on a branch
dfs-postdelisting-final-report-2025.09.16-signed.pdf567.88 KB

The following provides the final report of post-delisting monitoring and conservation conducted 
between 2020 and 2025 for the Delmarva Peninsula fox squirrel (Sciurus niger cinereus),
generally called the Delmarva fox squirrel. The Delmarva fox squirrel (DFS) is a subspecies of 
the eastern fox squirrel found only on the Delmarva Peninsula. It was listed as endangered in 
1967 and delisted in September 2015 due to recovery. An Interim Post-delisting Monitoring 
Report for the Delmarva Peninsula Fox squirrel summarized the post-delisting monitoring 
conducted in the first 5 years since delisting (USFWS 2020, entire). The following final report 
summarizes the monitoring and conservation work conducted between 2020 and 2025. 

Author(s)
Publication date
Type of document
Report
Facility
Nest of with eight American black duck chicks
Chesapeake Bay Ecological Services Field Office
We work with landowners, private and community organizations, government agencies and others to conserve, protect and enhance fish and wildlife in the Chesapeake Bay area including Delaware, Maryland and the District of Columbia. Our conservation priorities include: endangered, threatened and at-...
Conservation Office
Annapolis,MD
Media Usage Rights/License
Public Domain
Program
Close up of a California condor. Its pink featherless head contrasts with its black feathers.
We provide national leadership in the recovery and conservation of our nation's imperiled plant and animal species, working with experts in the scientific community to identify species on the verge of extinction and to build the road to recovery to bring them back. We work with a range of public...
Program
Falls Church,VA
A rocky shoreline of a river. The water is calm. Mist and green branches line the river.
The Ecological Services Program works to restore and protect healthy populations of fish, wildlife, and plants and the environments upon which they depend. Using the best available science, we work with federal, state, Tribal, local, and non-profit stakeholders, as well as private land owners, to...
Program
Falls Church,VA
Condor soars over mountain ridge.
We work with partners to conserve the ecosystems upon which endangered species and threatened species depend, developing and maintaining conservation programs for these species to improve their status to the point that Endangered Species Act protection is no longer necessary for survival. This...
Program
Falls Church,VA
Species
Delmarva Peninsula fox squirrel

This large, slate grey tree squirrel (Sciurus niger cinereus) has an unusually full, fluffy tail and white belly. Larger than common gray squirrels, this fox squirrel subspecies measures up to 28 inches long and weighs up to three pounds. Once found throughout the Delmarva Peninsula, the range...

FWS Focus
Species
Kingdom
Animalia
Taxonomic Rank
Subspecies
Ecosystem
Coastal
Forest
Subject tags
Endangered and/or Threatened species
Recovered
Monitoring
FWS and DOI Region(s)
Northeast