Scientists now say that the harmful alga will survive the winter and that it will probably turn green in the Oslo fjord next year as well.
Hundreds of guillemots go astray in the Oslo fjord every autumn. Many are now starving in the food-poor fjord.
Odd Sørensen discovered this dead whooper swan on 10 April. The Norwegian Food Safety Authority has received daily reports of dead birds and are asking the public to help report bird mortality in particular with ducks, geese, swans, seagulls, eagles, buzzards, crowd and ravens.
Knut-André Haugen found two dead swans with their heads under their wings outside Fredrikstad. Now the Norwegian Food Safety Authority suspects further spread of bird flu.
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