The geographical area covered by a migratory bird over the course of its annual cycle, encompassing breeding and non-breeding grounds and the connecting migration route.
Kirby et al. 2008 1
References & Websites
- Kirby JS, Stattersfield AJ, Butchart SHM, Evans MI, Grimmet RFA, Jones VR, O’Sullivan J, Tucker GM, Newton I (2008) Key conservation issues for migratory land- and waterbird species on the world’s major flyways. Bird Conservation International 18:S49–S73