A species in which some populations migrate while others are sedentary. The situation is common in birds with a wide distribution, because the different populations often experience very different climatic conditions.
|This article is part of Project Glossary, a All Birds project that aims to write comprehensive articles on each term related to animals.|
|This article is part of Project Bird Behaviour, a All Birds project that aims to write comprehensive articles on each behavioural term related to birds.|
Community content is available under CC-BY-SA unless otherwise noted.