AviList and the Future of Bird Classification
Despite visible differences, AviList treats Green-winged and Eurasian Teal as one species due to consistent hybridisation and genetic overlap. © Ilya Povalyaev

AviList and the Future of Bird Classification

A unified checklist reshapes how birds are named, studied, and conserved – laying the groundwork for a dynamic, evidence-driven taxonomy.


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The Sanctuary in the Sidewalk: Trees Rescue Birds in Mexico’s Cities
City trees offer shelter and song: House Finches are among the adaptable species thriving in Mexico’s urban nature pockets. © Braxton Landsman

The Sanctuary in the Sidewalk: Trees Rescue Birds in Mexico’s Cities

Even in the heart of a city, a tree can be a sanctuary for birds. A new study from Mexico reveals that urban trees do far more than provide shade – they offer critical nesting and foraging habitats for native species under pressure from habitat loss elsewhere.


The Ornithologist

The Ornithologist