New York's skyscrapers and concrete sidewalks hardly seem like a welcoming environment to millions of migrating birds that pass through the city every year.
Not surprisingly, most choose large open areas like Jamaica Bay Wildlife Refuge or Central Park, while others rest in small gardens and green spaces tucked between busy streets and brick buildings.
But a growing number of green roofs create new sanctuaries for feathery visitors stopping by the Big Apple.
“More than 130 species of birds make stopovers in the City as they wing along the 'Atlantic flyway,' one of North America’s most important bird-migration routes,” according to the New York Community Trust, which recently awarded New York City Audubon with a $40,000 grant to count and create an online database of green roofs in the city.
In recent years, green roofs have been installed on top of dozens of buildings throughout the city, including Barclays Center in Brooklyn and a new Department of Sanitation complex along the Hudson River on Spring Street.
NYC Audubon, which works to protect wild bird habitats in the city, has been involved in creating and monitoring of two such spaces — on top of the Jacob K. Javits Convention Center and, most recently, on the rooftop of an industrial building at 520 Kingsland Ave. in Greenpoint, near Newtown Creek.