The Shape of the Bird Tree: A Global Phylogeny of 11,000 Species
The Tibetan Sandgrouse is a high-altitude specialist from one of branches of the vast evolutionary tree uniting 11,000 bird species. © Rajkumar Das
Evolution and Taxonomy

The Shape of the Bird Tree: A Global Phylogeny of 11,000 Species

A new global bird tree maps the evolutionary relationships of ~11,000 species, offering powerful tools for research and conservation planning.

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Evolution or Plasticity? What the Hermit Thrush Reveals About Climate Change
Long regarded as stable, the Hermit Thrush now reveals how environmental change can leave measurable imprints on form and function. © Mark Daly

Evolution or Plasticity? What the Hermit Thrush Reveals About Climate Change

Over four decades, a familiar North American songbird has grown smaller. But genomic evidence reveals that not all of these changes are evolutionary – some may simply reflect the remarkable plasticity of living organisms in a warming world.
Evolution and Taxonomy
Gyorgy Szimuly

Gyorgy Szimuly
Bound by Coastlines: Genetics and the Hidden Structure of Mexico’s American Oystercatchers
American Oystercatchers along the coast of north-western Mexico inhabit a landscape shaped by strong site fidelity, where breeding populations remain closely tied to specific bays and shorelines despite their ability to travel long distances.© Rain Saulnier

Bound by Coastlines: Genetics and the Hidden Structure of Mexico’s American Oystercatchers

Genetic evidence from Mexico’s coastlines reveals that American Oystercatchers are far less mobile than they appear, shaped by loyalty to place and hidden evolutionary boundaries.
Evolution and Taxonomy
Gyorgy Szimuly

Gyorgy Szimuly
World Curlew Day: The Long Decline of Curlews, Now Fully Understood
Far Eastern Curlew (Numenius madagascariensis) occupying a landscape under pressure, mirroring a wider pattern in which curlews endure but rarely recover despite increasing clarity around their decline © Brendan Tucker

World Curlew Day: The Long Decline of Curlews, Now Fully Understood

Curlews are not disappearing unnoticed. The causes of their decline are now well understood, yet across flyways and landscapes, recovery remains limited and uneven — raising a harder question about the scale and persistence of our response.
Conservation
Gyorgy Szimuly

Gyorgy Szimuly
What Do Shearwaters Eat? Uncovering a Mediterranean Food Web
The Mediterranean endemic, Yelkouan Shearwater, relies heavily on small pelagic fish such as anchovies and mackerel, linking its fortunes closely to the region’s marine food web. © Jessica Joachim

What Do Shearwaters Eat? Uncovering a Mediterranean Food Web

DNA metabarcoding and stable isotope analysis reveal how two Mediterranean shearwaters share the same prey — and what that overlap tells us about life in a changing marine ecosystem.
Ecology and Behaviour
Gyorgy Szimuly

Gyorgy Szimuly
Fabricated Birds: AI and the Future of Ornithology
AI-generated image. A Shoebill (Balaeniceps rex) in papyrus habitat. The bird depicted here does not exist – a reminder that in the age of generative imagery, realism is no longer proof of presence. Image created by Daniel Szimuly/The Ornithologist. All rights reserved.

Fabricated Birds: AI and the Future of Ornithology

When we generated a Shoebill that never existed, the realism was flawless – and unsettling. In an age where synthetic plausibility becomes effortless, ornithology must reconsider what authenticity means and how it is protected.
Editorial
Gyorgy Szimuly

Gyorgy Szimuly