A district court granted environmental groups' motion for summary judgment in a challenge to FWS' 2019 determination that listing the Yellowstone bison as endangered or threatened under…

A district court granted summary judgment for an environmental group in a challenge to FWS' decision not to list the Joshua tree as threatened under the ESA. The group challenged the Service…

A district court granted summary judgment for FWS in a challenge to the adequacy of its recovery plan for the threatened bull trout. Environmental groups argued the plan failed to include…

The Ninth Circuit reversed summary judgment for FWS in a challenge to the Service's 2017 decision reversing its 2011 decision that the Pacific walrus qualified for listing under the ESA. An…

A district court granted in part and denied in part BLM's and FWS' motion to dismiss a lawsuit over an environmental group's petition to list a rare wildflower species in Nevada as…

A district court granted an environmental group's motion for summary judgment in a challenge to FWS' withdrawal of a rule proposed in 2015 to list the Lower Colorado River (LCR) Basin…

A district court dismissed for lack of standing a challenge to FWS' and NMFS' issuance of rules that revised key requirements of ESA's implementing regulations. Conservation groups…

A district court dismissed a challenge to FWS' development of guidelines implementing its species status assessments (SSA) program under the ESA. An environmental group argued that the…

A district court dismissed for lack of standing a challenge to FWS' decision to delist the threatened Louisiana black bear under the ESA. Individuals and nonprofit groups challenged the…

A district court held that FWS' decision to list the northern long-eared bat as threatened rather than endangered under the ESA was arbitrary and capricious. Environmental groups argued that…