What is the American Ornithological Society (AOS)? We’re a diverse, global network of empowered professionals, working together to advance the scientific study and conservation of birds. The world’s largest international ornithological society, the AOS is more relevant today than ever, and we’re dedicated to supporting the scientists doing this critical work—for the sake of birds, humanity, and the planet.
A broad and engaged ornithological community that advances the understanding and conservation of birds
To connect ornithologists, science, and bird conservation by
- Supporting science that advances the understanding and conservation of birds
- Promoting broad access to ornithological science
- Supporting ornithologists throughout their career paths, and
- Fostering a welcoming, diverse, supportive, and dynamic ornithological community.
View our Strategic Plan.
- Supporting impactful ornithological science
- Communicating and providing access to ornithological science
- Broadening and strengthening professional development and career support
- Fostering an inclusive ornithological community
- Excellence in governance and operations
We often see an organization’s work as snapshots of individual achievements or milestones. An annual report compiles these snapshots into a broader picture. Read the AOS’s Annual Reports to see how far we’ve come as an organization and learn about the accomplishments of our community!
The AOS was formed in 2016 with the merger of the American Ornithologists’ Union (AOU), founded in 1883, and Cooper Ornithological Society (COS), founded in 1893. Learn more about our history.