One in five migratory species faces extinction, UN report warns

The first-ever State of the World's Migratory Species assessment, which focusses on the 1,189 species covered by the UN Convention on the Conservation of Migratory Species of Wild Animals (CMS), found that one in five is threatened with extinction and 44 percent are seeing their populations decline.

Humans are to blame, by destroying or breaking up habitats, hunting, and polluting areas with plastics, chemicals, light and noise.

Climate change also threatens to interfere with migration routes and timings, by altering seasonal conditions.

"We are finding out the phenomenon of migration itself is under threat," CMS chief Amy Fraenkel told AFP, adding that the report should be a "wake up call about what's happening". 

The report is released as over 130 signatory countries -- with the notable absence of the United States, China, Canada and Russia -- gather for a conference in Samarkand, Uzbekistan from February 12 to 17.

Migratory species often rely on very specialised sites to feed and mate and their journeys between them can cross international borders and even continents.

Iconic species that make some of the most extraordinary journeys across the planet include the monarch butterfly, the humpback whale and the loggerhead turtle.

"Today's report sets out the evidence that unsustainable human activities are jeopardising the future of migratory species," said Inger Andersen, head of the United Nations Environment Programme (UNEP).

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