Bald eagle joins Vancouver airport's battle of the birds

A juvenile bald eagle is the newest bird of preybeing used to prevent birds from colliding with aircraft at Vancouver International Airport.

The eagle, named Hercules, is trained to fly over the airfield and scare away migrating waterfowl particularly snow geese.

"He's fantastic. He knows to go after the geese actually. He goes out and searches for them and does a nice big flyover and comes back," said bird handler Emily Fleming.

A bird strikes an airplaneevery few days at Canada's second busiest airport, posing a significant threat to human safety.

Strikes can result in everything from damage to engines or windscreens to fatal crashes. It was geese, for example, that brought down U.S. Airways Flight 1549 in 2009, forcing the captainto make an emergency landing on the Hudson River.

• Read more about U.S. Airways Flight 1549 landing onthe Hudson River

The airport's airside operations manager Brett Patterson said because the Vancouver airport is situated on the Fraser River estuary, it is an ideal habitat for waterfowl.

Strikes are especially challenging to manage atthis time of year, when birds travel in big flocks. In 2010, for example, more than 600 birdswere killed in over 200 strikes.

"We used to have a lot of problem with dunlin, which is a smallflocking shorebird. We used to have as many as a thousand come here onto the airfield," said the airport's wildlife manager David Bradbeer.

"In 2012, we started using trained falcons to scare off the dunlin from some of our cross-wind runways."

The airport's flock also includes a Harrishawk, which patrols ditches for ducks.

"We'll have him in the truck with us, undo the window and pop him out, and he scares the ducks off," said Fleming.

Airport officials said the battle of the birds in addition to other wildlife management techniques like dogs, sirens, propane cannons and pyrotechnics have been effective in decreasing the frequency of bird strikesin recent years.