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AviList: World’s First Unified Global Bird Checklist

  • 17 Jun 2025

On 12th June 2025, AviList—the first-ever unified global checklist of bird species—was launched after four years of work by the Working Group on Avian Checklists.

Key Points

  • Global Checklist: AviList replaces previous major lists like the IOC and Clements checklists, offering a unified, annually updated bird taxonomy.
  • Scale and Scope: The list includes 11,131 bird species, 19,879 subspecies, 2,376 genera, 252 families, and 46 orders.
  • Led by Global Experts: Developed by representatives from BirdLife International, Cornell Lab of Ornithology, Avibase, and others.
  • Conservation Impact: Aims to standardize global bird data, enhancing collaboration among scientists, conservationists, and policymakers.
  • Unified Taxonomy: Ends decades of fragmented bird classifications by harmonizing taxonomic standards worldwide for better research and conservation.