The H5N8 virus was detected in sick and injured birds in February and early March this year, including in a swan found dead in Helsinki's Eläintarhanlahti park and a goshawk sent to Korkeasaari Wildlife Hospital from Kumpula. Several birds infected with avian influenza have been found in Uusimaa this winter.
Flocks of whooper swans have been grazing in a field in southwestern Finland, although these swans don't typically return to Finland until March or April, according to Finland’s environment administration.
Some migrant birds are already flocking to the north, but a cold snap may delay more returns.
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