Articles on Endangered birds

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The highly pathogenic avian influenza virus has been detected in 41 at-risk species, including the snowy owl. The snowy owl was recently recommended for listing under Canada’s Species at Risk Act. (Jordi Segers/CWHC)

How we’re tracking avian flu’s toll on wildlife across North America

Researchers have detected highly pathogenic avian influenza in 41 at-risk bird species across all 10 Canadian provinces.
Sandhill cranes can be spotted in many states, but in the 1930s their populations had crashed to a few dozen breeding pairs in the eastern U.S. Rsocol/Wikimedia Commons

The surprising recovery of once‑rare birds

It’s not every day that you see a 4-foot-tall bird, but it’s happening more often. Several fascinating species are nesting in and near towns once again.
Tourists cross a hanging bridge in the treetops of Costa Rica’s Monteverde cloud forest. Matthew Williams-Ellis/Universal Images Group via Getty Images

Protecting biodiversity – and making it accessible – has paid off for Costa Rica

Tourism revenues account for almost 10% of Costa Rica’s gross domestic product. New research shows that charismatic wildlife is necessary but not sufficient to attract ecotourists.

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