DALLAS (AP) — United Airlines is defending the poisoning of birds at Houston's biggest airport, saying it was done for health and safety reasons.
But the airline said Wednesday that it didn't tell its contractor how to control the airport's bird population, and will ask the firm to consider other methods the next time.
The contractor laid out corn kernels laced with a bird-killing nerve agent at Bush Intercontinental Airport. People who work around the airport reported seeing grackles and pigeons fall to the ground and spin around as they died.
The bait manufacturer, Avitrol Corp., says a lethal dosage causes birds to show distress — including alarm cries and trembling — that frightens away other birds. It usually causes death within an hour, the company says.
Airports commonly take steps to shoo away birds, which can be sucked into jet engines and cause a loss of power. In 2009, US Airways pilot Chesley Sullenberger safely ditched his Airbus A320 into the Hudson River after hitting a flock of Canada geese during the climb from New York's LaGuardia Airport.
United spokeswoman Mary Clark said in a statement that the airline works with the airport on abatement programs "to reduce the health and safety risks posed by birds on airport property" and to "provide a clean and safe environment for our customers and employees."
Clark said United hired a contractor, Texas Bird Services, which is experienced at removing birds from airports. She said the company complied with all regulations while laying bait at terminals and a maintenance hangar at Bush airport.
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