Changes to the list of Endangered, Threatened & Special Concern species

Reviewing the status of rare and vulnerable species in Massachusetts.

The status of rare and vulnerable species in Massachusetts is dynamic and may change due to many factors such as:

  • our knowledge about their status in the state;
  • changes in biological populations; and
  • our understanding of their habitat requirements. 

Thus, the status of species on the Massachusetts List of Endangered (E), Threatened (T) and Special Concern Species (SC) is reviewed periodically and some changes may therefore be recommended.   

Listing species in Massachusetts is based on three primary factors:

  1. species rarity,
  2. population trends, and
  3. threats to the species in Massachusetts.  

For more information, please read:  Listing Endangered Species in Massachusetts: The Basis, Criteria and Procedure for Listing Endangered, Threatened and Special Concern Species

Species Listing Proposal Form

2019 MESA List Change Proposals

Taxonomic group

Common Name

Scientific Name

Proposed List Change


Blue-spotted Salamander

Ambystoma laterale

SC → T (Bristol and Plymouth Counties only)


Eastern Hognose Snake

Heterodon platirhinos

not listed → SC


Saltmarsh Sparrow

Ammodramus caudacutus

not listed → SC


Peregrine Falcon

Falco peregrinus

T → SC


Bald Eagle

Haliaeetus leucocephalus

T → SC


Eastern Meadowlark

Sturnella magna

not listed → T


Cobra Clubtail

Gomphus vastus

SC → delist


Umber Shadowdragon

Neurocordulia obsoleta

SC → delist


Stygian Shadowdragon

Neurocordulia yamaskanensis

SC → delist


Walsh's Anthophora

Anthophora walshii

not listed → E


American Bumble Bee

Bombus pensylvanicus

not listed → E


Yellow-banded Bumble Bee

Bombus terricola

not listed → T


Squarrose Sedge

Carex squarrosa

not listed → T


Two-flowered Rush

Juncus biflorus

not listed → T


Crooked-stemmed Aster

Symphyotrichum prenanthoides

SC → delist


Smooth Woodsia

Woodsia glabella

E → delist

  Schwalbea Americana Schwalbea americana not listed → E

E = Endangered                T = Threatened                 SC = Special Concern

The proposed Massachusetts Endangered Species Act (MESA) list changes are currently under review by the Massachusetts Natural Heritage & Endangered Species Program’s Advisory Committee, and are subject to change. Late in 2018 or early in 2019, final list change recommendations will be reviewed by the Fisheries & Wildlife Board and the Director, to be followed by a public hearing on the proposed changes and a vote by the Fisheries & Wildlife Board. Approved changes to the MESA list are anticipated to take effect in 2019.