'Wow factor': Public website reveals best-yet picture of hundreds of bird migrations

The piercing yellow eyes and deadly hunting skills of the snowy owl awe bird-lovers in the U.S. Midwest every winter.

Now, thanks to what has been heralded as the most comprehensive summary of migration patterns ever assembled, those birders can seewhere those raptors migrated from: the Seal River watershed innorthern Manitoba.

"We didn't know that," said Jeff Wells of the National Audubon Society, which activated its online Bird Migration Explorer onThursday.

"We didn't know that the owls that go to the Midwest arefiltering through the Seal River."

The Explorer, which combines millions of observations on hundredsof bird species, is full of such connections linking countries andcontinents and amazing discoveries.

That warbler in your backyard may be on its way from Alaska'sBering Strait to the Amazon rainforest. That little shorebird in theslough down the road is capable of zipping through the entire UnitedStates in a couple of days.

"There has never been so much compilation of migratory trackinginformation in one place," said Wells.

4 years, millions of dollars

The Explorer is the result of four years of work and millions ofdollars.

It uses more than 500 peer-reviewed studies from 283 institutions. It draws on decades of bird-banding data from agenciessuch as the Canadian Wildlife Service, as well as tracking data fromhundreds of transceiver-implanted birds.

It has input from states and provinces, a half-dozen nationalgovernments, nine large environmental groups and several privatecompanies. It folds in millions of observations from thousands ofbirders across the continent through the online portal eBird.

For each of the 458 species, users of the free, public websitecan check where that bird they're looking at has been, where it'sgoing and who's going with it. They can see its conservation statusand what threats it faces at which points along its migration route.

Or they can look at the big picture and marvel at the winged riverscrossing continents.

Conservation planners can use it to identify critical habitatsinstead of leafing through academic papers and hounding colleaguesfor data.

"I've done that for years," said Wells. "You're alwayspiecemealing it together and drawing broad generalizations.

"This really is groundbreaking."

Global connections

But perhaps the most important feature of the Explorer is thestory it tells about connection. Edmonton bird-lovers will discoverthat avian friends from their neck of the woods travel as far asPeru; eight species travel every year between Toronto and Cuba.

Birds are one way that human activities in one place affectsomewhere else far away, said Stuart Mackenzie of Birds Canada.

"It highlights the complexities of the systems we're trying tounderstand and save and the importance of linkages. We can't have aclosed-border approach to conservation."

It will also allow planners to link different species.

"If 20 species are all being impacted by the same threat, we canaddress the threat once instead of doing it 20 times," saidMackenzie.

Then there's just the sheer coolness of it, Mackenzie said.

"There's also a large wow factor, which is incredibly engaging,like 'My backyard is home to birds from the Arctic that blows mymind!'

"That level of engagement, even at the most basic level, is socritical when we're trying to save our environment and our species."

The tool also reveals information gaps useful to researcherslooking to make the best use of their resources.

Even after a lifetime in bird science, said Wells, he learns something when he opens the Explorer.

"Every time I open it there's something new. You can see theconnections of your place to the rest of the world."

The website is online at www.birdmigrationexplorer.org.