New Report: Decline of Populations of Migratory Species of Animals Covered by UN Treaty Worsens from 44% to 49% in 2 Yrs
https://www.cms.int/news/new-report-decline-populations-migratory-species-animals-covered-un-treaty-worsens
24% Now Face Extinction Globally, up from 22%
Report comes as governments are set to discuss targeted actions during the week-long UN wildlife conservation meeting in Brazil
5 March 2026, Bonn / Campo Grande An interim report which provides an update to the landmark State of the Worlds Migratory Species (2024) warns that 49% of migratory species populations conserved by the global UN treaty are declining, (5% more in just two years), and 24% of species face extinction (2% more).
Billions of individual aquatic, avian, and terrestrial wild animals migrate across lands, rivers, oceans and skies. They are essential to the well-functioning of nature and to human well-being, pollinating plants, transporting nutrients, regulating ecosystems, controlling pests, storing carbon and sustaining livelihoods and cultures worldwide.
Their survival depends on coordinated action across the full length of their migratory routes, which can cross multiple national borders and even continents.
The report underscores the need for action to improve the status of all migratory species listed on the Convention, but most urgently for the species listed on CMS Appendix I, where migratory species in danger of extinction throughout all or a significant portion of their range, are listed.
https://www.cms.int/publication/state-worlds-migratory-species-interim-report-2026