Category: TWS Wildlife News

Researchers have long thought that migrating species pay a cost for the energy they spend making long journeys. But what exactly is the tradeoff for these journeys? And what role...

Noise and light pollution have been known to cause behavioral changes in birds, but researchers recently found they can actually affect their reproductive fitness. “We know that sensory pollutants are...

The U.S. Fish and Wildlife Service has declined to list both the tufted puffin (Fratercula cirrhata) and the southern white-tailed ptarmigan (Lagopus leucura altipetens) under the Endangered Species Act. The...

The Center for Biological Diversity and Western Watersheds Project have filed suit against the U.S. Forest Service and the U.S. Fish and Wildlife Service, as well as other Department of...

New maps documenting migration routes throughout the West can help inform managers and conservation groups about areas that are important for deer, elk and other migratory species in the region....

Increasing periods of ice-free water on Hudson Bay continue to cause more conflicts between humans and polar bears in northern Manitoba, researchers found, but the main culprits don’t seem to...

Jaguars don’t always need pristine, untouched wild areas to get by in parts of central Mexico, but they do need a decent level of vegetation cover. Ongoing surveys in Mexico’s...

Burrowing crabs may be speeding up the process in which marshes adapt to sea level rise as a result of climate change. “I actually kind of think it’s a beautiful...

Mountain lion predation is the main cause of death in young elk calves in western central Montana, but increased harvest on the big cats can result in larger ungulate population...

The U.S. Fish and Wildlife Service has released the final environmental impact statement assessing its proposed rule that reduces migratory bird protections, which concludes that the new rule will result...