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Bird populations across the French countryside have fallen by a third over the last decade and a half, researchers have said.
Dozens of species have seen their numbers decline, in some cases by two-thirds, the scientists said in a pair of studies – one national in scope and the other covering a large agricultural region in central France.
“The situation is catastrophic,” said Benoit Fontaine, a conservation biologist at France’s National Museum of Natural History and co-author of one of the studies.
“Our countryside is in the process of becoming a veritable desert,” he said in a communique released by the National Centre for Scientific Research (CNRS), which also contributed to the findings.
The common white throat, the ortolan bunting, the Eurasian skylark and other once-ubiquitous species have all fallen off by at least a third, according a detailed, annual census initiated at the start of the century.
A migratory song bird, the meadow pipit, has declined by nearly 70%.
The museum described the pace and extent of the wipe-out as “a level approaching an ecological catastrophe”.
The primary culprit, researchers speculate, is the intensive use of pesticides on vast tracts of monoculture crops, especially wheat and corn.
https://www.theguardian.com/world/2...s-bird-population-collapses-due-to-pesticides