San Francisco’s skies went dark after millions of birds flew across the city’s western side.
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The sixth major fire in San Francisco occurred.
A devastating earthquake in San Francisco destroyed over 80% of the city.
The bald eagle is officially the national bird of the U.S.
Researchers discovered that as many as 600 million birds die in the US every year after flying into skyscrapers.
North American migratory birds getting smaller, their wings wider due to climate change according to study by University of Michigan published in journal 'Ecology Letters'.
