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 ...

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

Merlin Bird ID will soon feed AI-powered bird identifications into Cornell's eBird platform, helping researchers monitor bird ...

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 ...

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 ...

A new article shows a blueprint for conserving enough habitat to protect the populations of almost one-third of the warblers, orioles, tanagers, and other birds that migrate among the Americas ...

Biologists report that eBird observations match trends in bird species populations measured by US government surveys to within 0.4 percent. As long as there have been birdwatchers, there have been ...

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.