Frigid north winds blow down from the Arctic Ocean, freeze saltwater and push sea ice south. The ice normally prevents waves from forming and locks onto beaches, walling off villages. But not this year.
Carcasses examined so far have shown no indication of disease, and tests are pending for harmful algal toxins. Seabirds have been found emaciated and starved, and changed ocean conditions may have affected prey.
For researchers, this winter's mass migration of snowy owls from their breeding grounds above the Arctic Circle to the Great Lakes region is serious business.
All Topics
All Countries
Any Date
Apply