What is AviList?
AviList, launched on June 12, 2025, serves as the first unified global checklist of bird species. This initiative followed four years of collaborative work by the Working Group on Avian Checklists. The checklist replaces previous lists, including the International Ornithological Committee and Clements lists. It aims to provide clarity and consistency in avian taxonomy, crucial for conservation efforts.
About AviList
AviList compiles a comprehensive list of 11,131 bird species, 19,879 subspecies, 2,376 genera, 252 families, and 46 orders. This extensive classification reflects a global consensus on avian taxonomy. The checklist is published by BirdLife International and is available for free download.
Collaborative Effort
The Working Group on Avian Checklists includes experts from BirdLife International, Cornell Lab of Ornithology, American Ornithologists Society, International Ornithologists’ Union, and Avibase. This diverse team worked together to harmonise differing taxonomic perspectives. Their collaboration aims to eliminate confusion in species identification and facilitate conservation efforts.
Importance for Conservation
AviList is very important for conservationists and ornithologists. It establishes a common language for discussing bird species. Stuart Butchart, chief scientist at BirdLife International, emphasises that a unified taxonomy enhances data sharing. This clarity helps in prioritising conservation actions effectively.
Taxonomy and Methodology
The checklist employs an integrative species concept. This approach considers various evidence types, including morphology, genetics, and behaviour. The working group engages in detailed discussions, often using sound recordings and museum specimens to validate species classifications. Decisions are made through a voting process among group members.
Accessibility and Usage
AviList is freely accessible online. Users can download the complete checklist or a concise version in .xlsx and .csv formats. This accessibility ensures that researchers, policymakers, and bird enthusiasts can utilise the information for various purposes, including scientific research and legislative action.
Future of AviList
The Working Group plans to update AviList annually. As new research emerges, the checklist will evolve to reflect the latest scientific understanding. This ongoing process will continue to refine avian taxonomy and enhance conservation strategies.
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