critical habitat

Federal wildlife officials have designated 140 square miles of California's coastline a critical habitat for the endangered black abalone.

The U.S. Fish and Wildlife Service is proposing to expand the area of critical habitat set aside in six Western states for the endangered Southwestern willow flycatcher.

Alaska Native groups worried about losing tax revenues and royalties from oil development filed a lawsuit Friday challenging the federal government's designation of critical habitat for threatened polar bears on the state's oil-rich North Slope.

Alaska Native groups challenged the federal government's designation of critical habitat for threatened polar bears on the state's oil-rich North Slope in a lawsuit filed Friday.

The U.S. Supreme Court has decided to let stand a Bush administration designation of 8.6 million acres in four Western states as critical habitat for an endangered owl.

Wildlife officials have dropped their appeal of a court ruling that forces the government to revise its flawed plan to protect critical habitat for the elusive Canada lynx.

The Obama administration is setting aside 187,000 square miles in Alaska as a "critical habitat" for polar bears, an action that could add restrictions to future offshore drilling for oil and gas.

The Obama administration has issued its final rule on critical habitat for the bull trout, one of the most fought-over threatened species in the country the past two decades.

A judge in Wyoming has mostly upheld a federal decision to designate land in six states as critical habitat for the threatened Canada lynx.

Alaska Gov. Sean Parnell says an independent economic analysis shows the federal government has dramatically underestimated the potential effect of designating critical habitat for polar bears.