The Ninth Circuit upheld the denial of animal rights groups' motion to preliminarily enjoin DOI from rounding up, destroying, or auctioning off wild horses and burros in the Twin Peaks Herd…

The D.C. Circuit upheld a lower court decision dismissing an environmental group's action challenging FWS' and the National Park Service's plan for managing elk and bison…

A district court upheld the constitutionality of an appropriations rider that reinstated an FWS rule that removed ESA protections for the Northern Rocky Mountain gray wolf in all areas outside of…

A California appellate court reversed a lower court decision certifying residents' class action lawsuit against the state wildlife agency in connection with efforts to eradicate an invasive…

The D.C. Circuit held that a single sighting of a protected species is insufficient to render a property "occupied" for purposes of designating critical habitat under the ESA. In 2007,…

A district court, in a 116-page opinion, upheld the FWS' final rule listing the polar bear as a threatened species under the ESA. The FWS' decision to list the bear represents a…

The Tenth Circuit held that an individual's conviction under the Bald and Golden Eagle Protection Act for unlawfully possessing 141 eagle feathers does not violate the Religious Freedom…

The Ninth Circuit held that FWS' biological opinion addressing a hatchery project's impact on the bull trout in the Columbia River violates the ESA. Although the hatchery project is…

A district court denied various states' motion to issue a preliminary injunction compelling the U.S. Army Corps of Engineers to take all available measures to prevent the emigration of…

The Ninth Circuit held that the National Marine Fisheries Service (NMFS) violated the Marine Mammal Protection Act (MMPA), but not NEPA, when it authorized Idaho, Oregon, and Washington to kill up…