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Nearly 30 years after the first California Condors returned to Arizona's skies, four more young condors took flight from Vermilion Cliffs as nearly 900 people watched below. The first left the pen in under...

In 1997, biologists banded a young Martial Eagle in Kenya. Three decades later, the landscape around him had changed dramatically, but millions of GPS locations from his transmitter revealed how he was not...

Vultures took the spotlight this September. More than 1,200 people joined us for International Vulture Awareness Day at a school in Kenya, a village in Tanzania, and our visitor center in Boise. Students...

In June 2023, a chance encounter in Chiapas, Mexico, produced the country's first photos and video of a Harpy Eagle in more than a decade. The bird was young, and its age is a clue that a breeding pair may...

Lead exposure is well documented in birds and mammals, but far less is known about its prevalence in snakes. A new study led by our Energy Scientist Vincent Slabe tested gophersnakes and rattlesnakes in...

Not every raptor packs its bags when the seasons change. Some birds of prey travel thousands of miles twice a year, while others never leave home. In fact, more raptor species are partial migrants or non...

Alaska's Seward Peninsula just saw record prey numbers and one of the strongest Gyrfalcon breeding seasons in years—but one strange shift in the population has researchers watching closely. The season's...

This season brought record numbers for Ridgway's Hawk on nearly every front, both in the Dominican Republic and in Haiti. But our team had a little help from an unexpected source: a young male hawk from a...

New GPS tracking research from a Kenyan wind farm reveals that raptors don't all respond to turbines the same way—and one species in particular is flying dangerously close. The findings are already shaping...

Deep in the rainforests of Puerto Rico, Nashally Folch Mercado was utilizing cutting edge automated recorders to study threatened wildlife. But when she wanted to switch to a more hands-on position, it was...