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A record death event during fall migration sent experts scurrying for an explanation. In the lab results, they see a common factor: climate change.
Seabirds and their guano were essential to the spread of the Inca Empire, and a new study details the measures it took to preserve them.
Across the country, birders are being treated to one of the biggest irruption years of boreal birds in recent memory.
While some local counts may be cancelled due to regional COVID-19 rules, many community scientists across the hemisphere will carry on one of the longest-running wildlife censuses in a socially distanced fashion.