Peak bird migration is about to start in Utah and around the country. Here are tools for birding and how to identify the ...

Peak bird migration is about to start in Colorado and around the country. Here are tools for tracking and identifying the ...

Wildfires continue to burn in Western North Carolina and the South Carolina Upstate. Stay updated with our live coverage Thursday, March 27.

Windy conditions increased motorist risk and stressed rangeland, pastures and winter grain crops, according to the U.S.

Daily and monthly temperature records could be broken later this week in parts of the western and central U.S.

California’s snowpack is now 85% of average, with more snow in the northern Sierra and less in the south. Amid warming winters, the state is seeing less snow at lower elevations.

The massive annual spring migration of America's birds – millions of them – is underway. Here's how to follow along at home.

Where California's towering Sierra Nevada surrenders to the sprawling San Joaquin Valley, a high-stakes detective story is ...

On a map you can ... of warblers, the western tanager and the snow bunting. Long-distance migrants: These birds fly thousands of miles, often from the northern United States and Canada to ...

Those species might simply change their elevation depending ... through an area. On maps, you can see a wave of peak migration move up from the southernmost United States to the far north ...

Those species might simply change their elevation depending ... through an area. On a map you can see a wave of peak migration move up from the southernmost United States to the far north ...