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Sedge Warbler (Acrocephalus schoenobaenus) singing © S. Rösner | pixeldiversity
Pronunciation Guide
Common redstart (Phoenicurus phoenicurus) singing © S. Rösner | pixeldiversity

Free access to the IOU pronunciation guide for scientific bird names. Just search for the name of interest and replay the result as spoken word.

International Ornithologists' Union (IOU)
© Vanessa Burger
The Future of Birds

“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”

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Short-eared Owl (Asia flammeus) © S. Rösner | pixeldiversity
© Vanessa Burger
We now are happy to welcome you on our relaunched webpage. A new design and new functions and forms are awaiting our members now. More to come!
The IOU is back online!
© S. Rösner | pixeldiversity
Follow us on social media to get latest information!
© S. Rösner | pixeldiversity
Join our network of scientists, enthusiasts and specialists !
Our working groups
© S. Rösner | pixeldiversity

The International Ornithologists' Union offers:

IOUOrnithology 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.

Working groups

Specialists offer a variety of knowledge and organize meetings.. Apply to join the group of your interest.

IOU forums

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 ...

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