“Planet earth is in a global biodiversity and environmental crisis. Ornithologists and Fellows of the International Ornithologist’ Union Professor Lucia Severinghaus and Professor Yossi Leshem are featured in “The Future of Birds” documentary film by Jocelyn Demers. They join the many voices from ornithologists, scientists, birders and others around the world in a shared concern for birds and help us to understand the crucial role that birds play in the interconnectedness of the global natural world, why we need to be concerned and what can be done”
Ornithology is a global discipline addressing all levels of avian biology in birds from ecosystems to molecules, linking basic and applied research, and nurturing education and outreach. The IOU seeks to support, promote, and advance avian biology.
Specialists offer a variety of knowledge and organize meetings.. Apply to join the group of your interest.
All members of the IOU have free access to the new forum. Here, you can discuss recent research, ask questions on field work, methods, conservation, issues, ...
The IOU is hosting the International Ornithological Congresses (#IOCongress) on a 4-years turnus. We will inform members about all details ...
The International Ornithologists’ Union (IOU), together with the Society for the Study and Conservation of Birds in Mexico (CIPAMEX), are pleased to announce the XXIX International Ornithological Congress (IOCongress2026) ...
We are excited to announce the launch of AviList: The Global Avian Checklist, a freely available, consensus taxonomy of all birds of the world.
The Fridays4Birds Webinar Series — an initiative connecting ornithologists and conservationists worldwide through engaging online talks. Fridays4Birds hosts regular webinars covering avian ecology, migration, and conservation challenges across regions.
We just published the latest newsletter "The Flutter". Take a look at the latest news of the IOU:
Host the 2030 International Ornithological Congress! The International Ornithologists’ Union (IOU) is pleased to announce that bids are now open to host the 2030 International Ornithological Congress.
We just published the latest newsletter "The Flutter". Take a look at the latest news of the IOU ...
The third announcement : The 2nd Asian Ornithological Conference will be held from November 14 to 17, 2024, at the National Convention Center in Beijing. This conference is supported and promoted by the International Ornithological Union (IOU). The chief organizer is the Institute of Zoology, Chinese Academy of Sciences, with co-organizers including the College of Life Sciences, Northeast Normal ...
