Geese in Central Park, New York City Shutterstock / John A. Anderson
As human movements were restricted to limit the spread of covid-19 in early 2020, dozens of bird species became more abundant in urban centres in the US and Canada.
Nicola Koper at the University of Manitoba in Winnipeg, Canada, and her colleagues analysed 4.3 million observations made by volunteer birdwatchers to compare numbers during the pandemic restrictions with those in previous years.
Between March and May 2020, 66 of 82 species of birds observed by the birdwatchers across 93 North American counties displayed …
source: newscientist.com