Our birdsong recordings will be used to help monitor bird populations ...

Cornell Lab for Ornithology plans data linkup between app and population monitoring on eBird platform ...

In July 1992, two Danish birders visiting Patagonia, Arizona reported the first-ever, mega-rare cinnamon hummingbird in the United States. Back then, reporting rare birds required phoning in ...

The lights in the auditorium darken. The cacophony of voices subsides. The enormous screen comes to life, displaying a satellite image of Australia and the scattering of islands directly to the north.

Holly Merker’s eyes are constantly on the tree tops. During a outing to the John Heinz Wildlife Refuge at Tinicum on the outskirts of Philadelphia, her small frame is bogged down by more gear than a ...

Platforms such as iNaturalist and eBird encourage people to observe and document nature, but how accurate is the ecological data that they collect? In a new study published in Citizen Science: Theory ...

A willow ptarmigan native to the Arctic has been confirmed in Pennsylvania for the first time ever after appearing at Presque ...

The lights in the auditorium darken. The cacophony of voices subsides. The enormous screen comes to life, displaying a satellite image of Australia and the scattering of islands directly to the north.