Weatherwatch: Climate crisis fuelling steep fall in migratory bird numbers
A report by the British Trust for Ornithology indicates that migratory bird populations are in steep decline due to habitat loss, disease, and the climate crisis. The study highlights the vulnerability of species using the African-Eurasian flyway and calls for urgent international conservation strategies.
Why it matters
The decline of migratory birds serves as a critical indicator of broader ecological health and the accelerating impact of climate change on global biodiversity.
Migrating common cranes in flight in Hungary. Migrating common cranes in flight in Hungary. Weatherwatch Birds Weatherwatch: Climate crisis fuelling steep fall in migratory bird numbers Many species under threat use the African-Eurasian flyway, one of the planet’s largest mass-migration systems
Stephen Moss Thu 20 Aug 2026 01.00 EDT Share Prefer the Guardian on Google I t may still feel like summer, but in the world of birds, autumn migration is already well under way. Cuckoos and swifts have already left us, and while swallows and many species of warbler will not depart our shores until September, many species of Arctic-breeding waders have begun to stop off at our coastal marshes to refuel for their long journey south.
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