The Tennessee Ornithological Society is an independent, non-profit, educational and scientific organization devoted to the study and conservation of birds. Our members encourage the study of bird life, to record such findings and to spread our interest among others.

TOS holds annual weekend spring and fall meetings in various venues across Tennessee. These meetings are hosted by one of the 10 local Chapters and are comprised of a Friday night reception, half-day field trips, a business meeting, scientific paper presentations and a celebratory dinner.  An annual winter meeting brings together the membership for the sheer pleasure of birding.

Daily access to bird sightings, important action alerts and other timely announcement can be obtained by joining the Freelist tnbird listserv.

We are guided by our TOS Constitution.

Each year our members take part in numerous projects both local and national including the Audubon Christmas Bird Count the Great Backyard Bird Count hawk migration monitoring, shorebird monitoring, and Bluebird trail maintenance and monitoring.  Individual members also conduct annual Breeding Bird Surveys conduct scientific bird banding projects and work together with other National Conservation Organizations such as American Bird Conservancy,  American Birding Association, Cornell Lab of Ornithology to protect habitat, and avian species.