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US NewsThe 9/11 Tribute Lights Are Endangering 160,000 Birds a Year

11:50  10 september  2019
11:50  10 september  2019 Source:   msn.com

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Every year on Sept. 11 , two soaring beams of light turn on over Lower Manhattan in a glowing tribute to those killed 18 years ago. Observers looking closely can spot dots and shapes gathering inside the towers of light , moving, multiplying, wheeling lower and lower.

Illuminated every September 11 since 2002, the Tribute is an iconic and emotional memorial to the lives lost in the 9 / 11 terrorist attacks and a Building collisions claim an estimated 90, 000 birds a year in New York City. A study by scientists at the Smithsonian Migratory Bird Center estimated that nearly

The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year © Andrew Kelly/Reuters Members of the New York City Audubon Society monitor birds that are attracted to the Tribute in Light installation. Every year on Sept. 11, two soaring beams of light turn on over Lower Manhattan in a glowing tribute to those killed 18 years ago. Observers looking closely can spot dots and shapes gathering inside the towers of light, moving, multiplying, wheeling lower and lower.

These dots are actually birds, who are drawn to the light along with insects and bats. The animals circle these lights, seemingly unable to veer away, and are pulled off course, putting them at risk of deadly exhaustion or injury. Sometimes, their calls to one another can be heard, which increase, scientists say, with their confusion.

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During the seven- year study at National September 11 Memorial and Museum, researchers noticed thousands of birds were drawn to the annual light display, causing them to waste precious energy circling and calling And when the lights were turned off, the birds went on their way within minutes.

Tribute in Light is a commemorative public art installation first presented six months after 9 / 11 and then every year thereafter, from dusk to dawn Assembled on the roof of the Battery Parking Garage south of the 9 / 11 Memorial, the twin beams reach up to four miles into the sky and are comprised of

By twist of fate, the anniversary of the Sept. 11 attacks coincides with a much older yearly ritual: the migration of birds across New York City as fall approaches. The convergence creates a spectacle that is eerily beautiful, yet according to one study endangers some 160,000 birds a year, starkly illustrating the perils of humans and animals sharing an urban ecosystem.

The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year © 2019 Getty Images NEW YORK, NEW YORK - SEPTEMBER 09: One World Trade Center, also known as the Freedom Tower, stands in lower Manhattan on September 09, 2019 in New York City. New York City is preparing to commemorate the 18th anniversary of the attacks on the World Trade Center in which 2,996 people were killed and over 6000 were injured. (Photo by Spencer Platt/Getty Images) The tiring detour through the beams of light can put birds at risk of starvation or injury to populations already threatened by light pollution, collisions with buildings, habitat destruction and climate change.

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Exactly one year after the Tribute in Light at ground zero drew thousands of migrating birds into its beams, the night of September 11 passed It was a far cry from last year , when an estimated 10, 000 birds were caught over the course of the night, circling in confusion until the lights were temporarily

"Comprising 88 7, 000 -watt xenon light bulbs positioned into 48-foot squares that echo the shape and orientation of the Twin Towers, Tribute In Light is assembled each year on a Apparently, the lights can pose a danger to migrating birds , who are attracted to them and can get "caught" in the beams

Since 2005, bird scientists, ecological volunteers and the memorial’s sponsors have worked together to try to reduce the harm — a collaboration now yielding new scientific insights and increasing support for protecting birds in New York and other cities.

The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year © 2019 Getty Images NEW YORK, NY -SEPTEMBER 05: One World Trade Center towers over the September 11 Memorial and Museum on September 05, 2019 in New York City. New York City is preparing to commemorate the 18th anniversary of the attacks on the World Trade Center in which 2,996 people were killed and over 6000 were injured.(Photo by Spencer Platt/Getty Images)

Around sunset, as the beams become visible, volunteers and scientists — along with Sept. 11 emergency responders, survivors and relatives of victims who are invited to view the tribute — gather on the roof of a parking garage near the base of lights close to the World Trade Center site.

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Scientists have long known that artificial light can attract and disorient birds at night, causing collisions and wreaking mischief with their migratory path. Now, the annual September 11 “ Tribute in Light Memorial” in Manhattan has provided a unique opportunity to study and quantify the effect.

Researchers noticed thousands of birds were drawn to the 9 / 11 memorial light display, causing them to waste precious energy circling and calling and The lights caused the birds to waste precious energy circling and calling. They also risked collisions with nearby buildings or capture by predators.

With the help of binoculars, radar and the naked eye, the scientists count the trapped birds, which often include small songbirds like Canada and yellow warblers and American redstarts. Nighthawks and bats come too, to prey on insects, and peregrine falcons show up to feed on the smaller birds. When the number of trapped birds reaches around 1,000, the lights are switched off for 20 minutes to let the birds disperse.

The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year © 2019 Gary Hershorn HOBOKEN, NJ - SEPT 7: A seagull stands in front of the skyline of lower Manhattan as the sun rises in New York City on September 7, 2019 as seen from Hoboken, New Jersey. (Photo by Gary Hershorn/Getty Images) Susan Elbin, an ornithologist and the director of conservation and science at New York City Audubon, an advocacy group, finds herself awed by the nightlong vigil.

“It’s very solemn,” she said. “The lights just sort of appear in the darkness and go on forever”— four miles up — “and when the sun rises the next morning it just disappears.”

She added, “It’s my job to turn the lights out, and I’d rather not have lights on at all, because the artificial light interferes with birds’ natural cues to navigate.”

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Birds are attracted to the light of the 9 / 11 tribute . While birds are scarce in some years , this year is expected to be plentiful, thanks to, among other things, the new moon. In 2010, a new moon and cloudy skies yielded an estimated 10, 000 birds caught through the night—the lights had to be shut down

The ornithologists estimate that the Tribute in Light disoriented 1 . 1 million migrating birds over the seven nights — across seven years — that they Memorial organizers work with volunteers and ornithologists to keep an eye on bird activity while the lights are on. Once more than 1, 000 birds are

The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year © 2019 Gary Hershorn JERSEY CITY, NJ - SEPT 9: The sun sets on lower Manhattan and One World Trade Center in New York City on September 9, 2019 as seen from Jersey City, New Jersey. (Photo by Gary Hershorn/Getty Images) But she also understands the importance of the tribute: Last year, she recalled, a visitor told her that his friend, an emergency responder unable to travel because of an illness he contracted working at ground zero, could see the tribute from his town on Long Island, and felt disturbed every time it shut down to let the birds fly away.

But according to radar studies by Ms. Elbin and other scientists, the 20-minute breaks are enough to allow birds to resume their migration.

The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year © Gary Hershorn/Getty Images Birds and moths twinkle as they fly through the beams of lights as part of the Sept. 11 anniversary. The light tribute attracts bird densities up to 150 times their normal levels. One study conducted on seven anniversary nights between 2008 to 2016 concluded that the lights affected the migrations of 1.1 million birds.

Collisions with buildings, especially ones with transparent or reflective windows, kill 600 million birds a year across the country, and as many as 230,000 in New York City, according to N.Y.C. Audubon.

The problem at the tribute, Ms. Elbin said, is that the immense lights can leave birds exhausted and disoriented, making them more vulnerable as they continue their migration.

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But the 9 / 11 Tribute in Light has come up with a solution. By Andrew Farnsworth and Kyle G. Horton. If densities exceed more than 1, 000 birds or if a bird is found dead, the lights are shut down to allow the birds to disperse. For the first few years , weather conditions largely kept migrating birds

During the seven- year study at National September 11 Memorial and Museum, researchers noticed thousands of birds were drawn to the annual light display, causing them to waste precious energy circling and calling And when the lights were turned off, the birds went on their way within minutes.

“Light lures them in, and glass finishes them off,” she said.

Another risk is that by flying in the lights, birds could use up too much of the fat they store for energy for migration, she said. “They only have enough to get where they need to go; the fatter you are the more energy it takes to fly, so it’s a fine balance,” she said.

The Sept. 11 bird-watching ritual has attracted a following; there are waiting lists to join the 20 volunteers each year. It has also bolstered a growing movement called “community science,” in which members of the public help professional scientists collect data, increasing the scale of research and helping connect volunteers to their environment and to science.

The radar studies are now being used by scientists and advocates to raise awareness about the ecological impact of light pollution in cities across the globe. The monitoring is being expanded to look at the affect of the lights on insects, which also suffer migration disruption and can burn to death.

The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year © ASSOCIATED PRESS Norma Molina, of San Antonio, Texas, leaves flowers by the names of firefighters from Engine 33 at the September 11 Memorial, Monday, Sept. 9, 2019, in New York. Her boyfriend Robert Edward Evans, a member of Engine 33, was killed in the north tower of the World Trade Center on Sept. 11, 2001. (AP Photo/Mark Lennihan) On Tuesday, the City Council is holding a committee meeting on a bill to require new or renovated buildings to use more bird-friendly glass. A similar campaign is underway in Chicago.

The bird-saving effort has an extra resonance this year as a United Nations climate summit kicks off later in September in New York.

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Emergency services were called to Forest Road, Peakhurst at 11:10 am , where the motorbike was crushed into a pole. Despite the best efforts of concerned witnesses, the 32- year -old male rider and his 22- year -old pillion died at the The 9 / 11 Tribute Lights Are Endangering 160 , 000 Birds a Year .

Опубликовано: 11 сент. 2015 г. The Tribute in Light ’s twin beams first pierced the sky over Lower Manhattan, six Visiting the 9 / 11 Memorial and Museum - New York, NY - Продолжительность: 5:18 Official 11 Year Time-Lapse Movie of One World Trade Center - Продолжительность: 2:06

According to the National Audubon Society, habitats that are shifting and shrinking as a result of climate change will imperil half of all North American bird species, 145 of them living in or migrating through New York.

Sara Crosby, 43, joined N.Y.C. Audubon’s Project Safelight, which monitors the streets for birds that have died after crashing into buildings, after finding a dead bird on the sidewalk. In 2007, she joined the 4 a.m. to 6 a.m. monitoring shift on Sept. 11, a scene she described as a mix of “bird people with their yoga mats” and “lots of scientists being science-y.”

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The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year
The 9/11 Tribute Lights Are Endangering 160,000 Birds a Year

Ms. Crosby, an administrator at Borough of Manhattan Community College, added, “I was here for 9/11. I saw the second plane. I am not ‘anti’ a tribute.”

“But,” she added, “a tribute that kills thousands of birds? Is this really what we want?”

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