The Ninth Circuit vacated a district court's mandatory preliminary injunction requiring a California county to take certain actions in its management of a dam and reservoir. Environmental groups…

A district court granted summary judgment for an environmental group in an ESA citizen suit challenging the California Department of Parks and Recreation's authorization of off-highway vehicle use…

A district court granted summary judgment for environmental groups in a challenge to FWS' 2022 ESA rule affirming a 2013 rule that listed the streaked horned lark as a threatened species and…

The D.C. Circuit affirmed summary judgment for FWS in a challenge to its rejection of a petition to remove the southwestern willow flycatcher from the list of endangered subspecies. A group of…

A district court granted in part and denied in part summary judgment for property owners in a challenge to FWS' 2020 final rule designating ESA critical habitat for the black pinesnake. Timberland…

A district court granted FWS' motion to vacate and remand its 2022 rule listing the northern distinct population segment (DPS) lesser prairie-chicken as threatened and the southern DPS of the…

A district court ruled for environmental groups in a challenge to FWS' 2024 finding that listing a distinct population segment (DPS) of gray wolves in the western United States under the ESA was…

The D.C. Circuit affirmed dismissal of a challenge to an FWS rule downlisting the American burying beetle from endangered to threatened and to its ESA §4(d) rule establishing protections for…

A district court denied environmental groups' motion for a preliminary injunction in a challenge to the Forest Service's and FWS' approval of a logging project in Flathead National Forest. The…

A district court granted in part and denied in part environmental groups' motion for summary judgment in a challenge to the Army Corps of Engineers' and FWS' permitting of a proposed multi-use…