Experts make a clear observation on Lake Constance:
There are significantly fewer cormorants on Lake Constance. Experts see a connection with the decline in fish ...
schwaebische.de/regional/bodensee/monitoring-zahl-der-kormorane-am-bodensee-deutlich-gesunken-4167010
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Paid articlePaywall Problem bird causing trouble on Lake Constance: Now they're resorting to an unusual method.
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Key FactsTesting Drones to Control Cormorants at Lake Constance
May 27, 2026 · Reading time: ~30 sec.
Summary created with AI assistance · Source: schwaebische.de
Summary created with AI assistance · Source: schwaebische.de
- A modified agricultural drone coated cormorant eggs with oil in high nests to prevent hatching and reduce breeding success.
- Drone flights are restricted to a brief window from mid-March to late April when eggs are still unhatched.
- Environmental authorities expect to evaluate footage and reports by mid-July before deciding on further drone use.
- The three-year, €900,000 project supports conservation efforts for endangered fish species in the Lake Constance region.
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Paid articlePaywallCormorant: 900,000-euro project for drone flights remains opaque: A project costing €900,000 will include the use of drones to combat cormorants. However ...
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It's making life difficult for fishermen on Lake Constance: this is how it is now to be stopped.
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New weapon in the fight against problem animals on Lake Constance: Using high-tech to combat fish hunters on Lake Constance: From 2026, drones will be used ...
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Why hope dies last for the fishermen: ...
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