Swans in Slovakia have been reported to consume opium poppy plants, leading to addictive behavior that causes them to remain in poppy fields and results in crop damage and some swan fatalities.
Swans in Slovakia Found Addicted to Poppy Plants Refuse to Leave Fields

Swans In Slovakia Are Addicted To Drugs, Refuse To Leave Poppy Fields - News18
Source: news18.com
Key Evidence
Multiple independent news sources report that over 200 swans consumed opium poppy seeds in Slovakian fields near Komárno, causing intoxication and behavioral dependence that prevents them from leaving. The birds caused significant crop damage and some fatalities have occurred due to overdose.
news18.comnews18.comSwans In Slovakia Are Addicted To Drugs, Refuse To Leave Poppy Fields
birdguides.combirdguides.comSwans become addicted to poppy seeds at Slovakian farm
economictimes.indiatimes.comeconomictimes.indiatimes.comPoppy farmers in Slovakia grapple with an unusual predicament: Swans addicted to...
What the Evidence Shows
The claim that swans in Slovakia have become addicted to poppy plants and refuse to leave the fields is supported by multiple news reports from credible sources. Over 200 mute swans were observed arriving at poppy fields near Komárno, Slovakia, where flooding created favorable conditions for the birds.birdguides.combirdguides.comSwans become addicted to poppy seeds at Slovakian farm
newsweek.comnewsweek.comDrugged-Up Swans Forced to Go Cold Turkey After Invading Poppy Farm The swans consume the opium-containing poppy seeds, which contain narcotic alkaloids, leading to intoxication and addictive behavior.
This has caused the birds to remain in the fields for extended periods, unable or unwilling to fly away due to the drug effects.news18.comnews18.comSwans In Slovakia Are Addicted To Drugs, Refuse To Leave Poppy Fields
totallythebomb.comtotallythebomb.comThese Swans Became Addicted To Poppies And Ended Up Becoming Too High To Fly... The flock has caused significant agricultural damage, destroying approximately five hectares of poppy crops and resulting in financial losses estimated at around €10,000 for the farmer.
news18.comnews18.comSwans In Slovakia Are Addicted To Drugs, Refuse To Leave Poppy Fields
indiatimes.comindiatimes.comSwans In Slovakia Addicted To Poppy Seeds Are Causing Damage To Harvest, But... Tragically, some swans have died from overdosing on the toxic plants.
economictimes.indiatimes.comeconomictimes.indiatimes.comPoppy farmers in Slovakia grapple with an unusual predicament: Swans addicted to...
Conservation efforts include relocating swans to detox facilities, but space is limited.scoop.upworthy.comscoop.upworthy.comSwans in Slovakia are being sent to 'detox' after getting addicted to poppy... The swans are a protected species in Slovakia, limiting farmers' options for removal.
indianarrative.comindianarrative.comWatch: Farmers puzzled as swans get addicted to poppy crop While the term 'addicted' is used colloquially in media reports, it reflects observed behavioral dependence on the narcotic effects of the poppies.
However, scientific studies specifically documenting addiction mechanisms in these swans are not cited, so some nuance remains regarding the clinical definition of addiction versus intoxication. Overall, the claim aligns with reported facts but relies on journalistic descriptions rather than peer-reviewed scientific research.