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News: AviList, the first-ever unified global checklist of bird species, became live on June 12, 2025, after four years of work by the Working Group on Avian Checklists. AviList: First-ever unified global checklist of bird species.
About AviList: First-ever unified global checklist of bird species

- It is the first-ever unified global checklist of bird species.
- Launched by: It is launched under the Working Group on Avian Checklists, which includes experts from BirdLife International, the Cornell Lab of Ornithology, the American Ornithologists’ Society, the International Ornithologists’ Union, and Avibase.
- It will replace the International Ornithological Committee (IOC) and Clements lists and will be updated annually.
- Aim: It aims to eliminate confusion caused by multiple lists and to help the global community “speak the same language” for bird conservation and research.
- Features
- The list contains 11,131 species, 19,879 subspecies, 2,376 genera, 252 families and 46 orders.
- It has brought together global thinking on what constitutes a species and shakes up humanity’s understanding of the avian world.
- The new list will especially help scientists get clarity on conservation priorities.



