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Valentin Moser
vmoser.bsky.social
did:plc:jjrgubr4lj7gfqjs6qt6crr2
New #research! Trying to find the true winter abundance of #Black-headedGulls in Switzerland, we organised a national count - at the overnight roosts! With this method, we recorded with 39'000 gulls about 20 % more than during the traditional (diurnal) water bird counts
2025-04-22T12:44:53.484Z