Sunday, February 17, 2013

Sunday Globe Special: Lost Snowy Owl Living at Logan

"Finding lessons in owl’s long flight; GPS helps Logan learn habits, prevent bird strikes" by Martine Powers  |  Globe Staff, January 27, 2013

A snowy owl residing at Logan and outfitted with a GPS transmitter is being hailed as a loyal airport patron after it flew north for the summer, pit-stopped at the uppermost reaches of Canada, then beelined back to Logan.... 

Why did it come back so soon? Too cold?

Typically, snowy owls will spend the summer in the arctic, then head to new regions or are waylaid by the Saint Lawrence Seaway, close to Montreal. If they return to their starting point, it’s usually years later.

But after taking a summer hiatus west of balmy Baffin Island, the bird hustled back to Massachusetts. On November 24, GPS confirmed that the owl had returned.

Currently, it hops back and forth between the airport and Castle Island.

In some ways, it is unfortunate that the owl returned to Logan — after all, the goal of the wildlife management program is to deter the birds. But the snowy owls help keep smaller, more problematic birds at bay. And data from this bird’s travels may shed new light on migratory patterns that could help airport staff better anticipate avian habits. 

It is a landscape especially familiar to snowy birds, who spend much of the year in the dry, chilly Arctic, said Norman Smith, director of the Massachusetts Audubon Society Blue Hills Trailside Museum, an owl enthusiast who has trapped and released hundreds of Logan Airport birds.

“If you took away the runways, the terminals, the buildings, the lights, the antennas — this is what the Arctic tundra would look like,” said Smith, gazing out at the airfield on a clear, sunny afternoon.

“It’s a double-edged sword,” Smith said. “We want the birds to stay away. But it’s kind of interesting to see the journey this bird has taken, and you wonder why it came back.”

Wildlife technicians at Logan employ a range of methods to diminish the risk of a bird strike, including sound canons and sirens to shoo away owls or geese that wander too close to an active runway.

But increasingly, they are turning to more nuanced tactics: Special endophytic grass, laced with a bacteria that causes indigestion, deters the birds. The landscape is reworked to prevent puddling, which attracts all manner of wildlife....

Waging biological warfare against the birds?

The threat that birds may collide with airplanes is no joking matter. In 1960, 62 people were killed when Eastern Air Lines Flight 375 crashed into Winthrop Bay after the aircraft engines ingested several starlings. Bird strikes made headlines again in 2009 when a run-in with a flock of Canada Geese caused US Airways Flight 1549 to ditch onto New York’s Hudson River. 

I'm not sure I believe the reasons for those crashes were bird strikes, but be that as it may.

It is a nightmare outcome for Jeffrey Turner, a certified airport wildlife biologist with the United States Department of Agriculture, stationed at Logan.

The Hudson landing, he said, “struck fear into all airline pilots that they need to become more aware of the birds.”

Logan, it turns out, is more popular than any other airport in the region for the winged creatures, especially the white, speckled snowy owls. Between 1990 and 2012, 73 snowy owls have been struck by airplanes nationwide, according to Federal Aviation Administration and Logan records. Twenty-three of those came from Logan.

From the terminal windows, Logan may seem more concrete jungle than avian oasis, but the airport’s 1,700 acres of airfield, mostly grassy plains abutting the harbor, makes it an attractive home for birds large and small....

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