Red List Categories and Criteria


Red List Categories

According to their extinction risk, species are classified into eight categories. For more information, please see the IUCN Red List Categories and Criteria.

Red List Criteria

The Red List Criteria give a quantitative threshold for the threatened Categories VU, EN and CR. For more information, please see the Red List Criteria Summary Sheet.

Subscribe to email alerts

Sign up here to receive email alerts regarding BirdLife’s Globally Threatened Bird Forums

Subscribed!

Thank you for subscribing to email alerts regarding BirdLife’s Red List Changes Forums.