From shorebirds flying between their Arctic breeding grounds and southerly foraging ranges to freshwater fish returning to native spawning streams, migratory animals are struggling. About half of all migratory species populations protected under a global treaty are now in decline, with the situation worsening in just the last two years, according to a new United Nations-backed report. When the first State of the World’s Migratory Species report was published in 2024, 44% of migratory species populations listed under the U.N. Convention on the Conservation of Migratory Species of Wild Animals (CMS) were declining, according to data from the IUCN Red List, the world’s most comprehensive guide to global extinction risk. Since then, the proportion of imperiled CMS-listed species rose to 49%, according to updated Red List data and new research. Though the next status report isn’t due until around 2030, conservation advocates said the deteriorating situation required an interim report, as many countries are moving in the wrong direction when it comes to conserving wildlife that depend on various habitats to complete their life cycles. “This [interim report] is saying there are some alarming trends in the meantime; that we don’t want to wait six years to talk about this,” said CMS executive secretary Amy Fraenkel. Jaguars have no subspecies. Their range extends from Mexico to Argentina, but some populations are cut off, at risk of inbreeding and the demise that comes with it. Image by Gregoire Dubois. The convention, established in 1979, aims to conserve migratory species by protecting…This article was originally published on Mongabay

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