The court holds that the U.S. Fish and Wildlife's (FWS') decision that the westlope cutthroat trout (WCT) did not warrant listing as an endangered or threatened species was arbitrary and…

The court reverses a district court decision and holds that the U.S. Fish and Wildlife Service (FWS) does not have discretion under Endangered Species Act (ESA) §4 to make an initial determination…

The court holds that the U.S. Fish and Wildlife Service (FWS) acted in an arbitrary and capricious manner by issuing incidental take statements imposing terms and conditions on grazing permits…

The court affirms a district court denial of an environmental group's motion for a preliminary injunction to stay the U.S. Department of the Navy's exercises on the island of Vieques…

The court holds that the take provision of the Endangered Species Act (ESA), as applied to landowners, does not violate the U.S. Commerce Clause. After purchasing property, the landowners sought…

The court affirms a district court decision rejecting an environmental group's claims for attorney fees in connection with their lawsuit against the U.S. Department of the Interior (DOI) in…

The court holds that the Endangered Species Act's (ESA's) application to private lands in order to protect an endangered species that lives entirely within one state does not violate the…

The court holds that the U.S. Department of the Interior's (DOI's) decision to withdraw a proposed rule recommending the flat-tailed horned lizard for protection under the Endangered…

The court affirms a district court dismissal of an environmental group's suit against the U.S. Fish and Wildlife Service (FWS) for failing to reinitiate consultation regarding an incidental…

The court denies environmental groups' motion for a preliminary injunction requiring the U.S. Army Corps of Engineers' management of a Florida water project to comply with certain…