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

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

Caught the briefest glimpse of a warbler flitting through ... during which about 50% of nighttime bird migration traffic passes through an area. On a map you can see a wave of peak migration ...

Warblers, osprey ... the seasonal window during which about 50% of nighttime bird migration traffic passes through an area. On a map you can see a wave of peak migration move up from the ...

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

A popular bird-watching spot is open again, after officials there determined the threat of avian flu spreading in that spot ...

Cherry Springs, isolated atop its mountain and surrounded by the 265,000-acre Susquehannock State Forest, remained a haven of darkness. In 2000, the park was designated as Pennsylvania’s first Dark ...

For those seeking quirky attractions, the Koester House Museum and Gardens reaches peak appeal in spring. This perfectly preserved Victorian mansion opens its formal gardens to visitors, showcasing ...

Monarch butterflies are making their annual journey north out of Mexico to their summer breeding grounds. See where they've ...

Monarch butterflies have been spotted in south Georgia. See when you can expect them further north and check out some tips to ...