Mérida, Yucatán, México November 30 – December 5, 2026. Organized by the International Ornithologists’ Union (IOU) and CIPAMEX – Sociedad para el Estudio y Conservación de las Aves en México, A.C.
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.
