HOME
REGISTER/LOGIN
FREE NEWSLETTER
XML|RSS
Advanced Search
PODCAST
VIDEO

EAA 2002 OSH

August 1, 1999

Teaching Birds to Fly
What goes around comes around. We learned flight from the birds, and now several endangered species of birds need to learn from pilots how to migrate south if they are to survive. Operation Migration's Bill Lishman explained how he's teaching them to a crowd filled with fellow ultralight pilots at EAA's Theatre in the Woods Saturday night. AVweb's Joe Godfrey was there, and reports on the folks behind the movie "Fly Away Home."
August 1, 1999

by
About the Author ...

Joe Godfrey mixes his love of flying with a love of music. He is an instrument-rated private pilot who flies a 1974 Bellanca Viking based at Palomar airport just north of San Diego, Calif. He composes music for commercials, films, broadcast and corporate media and has composed and produced thousands of music tracks for America's largest advertisers. In addition to writing for AVweb, Joe contributes to The Aviation Consumer and IFR Magazine.

He is a director and pilot for Angel Flight West, a non-profit organization that uses private airplanes to fly indigent medical patients. He is married and lives in Leucadia, California.

So far, Joe is the only AVweb staff member who has logged time with Ella Fitzgerald and conducted the London Symphony.

Complete Coverage from AVweb
(Links to Related Articles)

Preliminary Reports:
Monday & Tuesday, July 26-27

Day One:
Wednesday, July 28

Day Two:
Thursday, July 29

Day Three:
Friday, July 30

Day Four:
Saturday, July 31

Day Five:
Sunday, August 1

Day Six:
Monday, August 2


"Sometimes we forget that we share the air with animals that have been flying for millions of years, and there's still a lot we can learn from them," says Bill Lishman, chairman and CEO of Operation Migration. Lishman's autobiography, Father Goose, inspired the 1995 film Fly Away Home starring Jeff Daniels, Anna Paquin and Dana Delaney. The film tells the story of Lishman's successful efforts to lead flocks of geese on their flight south by acting as a surrogate parent. Working with naturalist William Carrick, Lishman led the birds around Ontario, teaching them a safe migration route. Lishman came to AirVenture '99 to explain the project, share his experiences, and raise funds for future work.

In 1988, Lishman became the first man to fly in formation with a flock of birds, imprinting them to an Easy Riser ultralight that he built. Larry Mauro designed the trike in the mid-'70s, probably never expecting it to dress like a goose. After some experimentation, the team found that Mauro's design had a similar flight envelope to the whooping crane. Lishman and his partner, Joe Duff, brought three airplanes to Oshkosh to display outside the exhibition halls, including their original Easy Riser. Before founding Operation Migration, Lishman was a sculptor and Duff was one of Canada's leading commercial photographers. Joining Lishman and Duff at Oshkosh is teammate Deke Clark, a former F-86 pilot and UAL 777 captain. Clark thinks that trikes are the safest airplanes he has ever flown.

The goal of the project is to teach endangered birds the migration patterns necessary for survival. Geese are not endangered, but Lishman knew that he would never get support for his work unless he established a track record with non-endangered birds. Based on their success with Canada geese, in 1997 they flew a flock of seven sandhill cranes from Ontario to Virginia. The cranes spent the winter there under supervision and were given freedom to fly in late February. In late March Kate Sutherland, the biologist who tended them during the winter, reported that they had not returned yet from their daily foraging trip. Two days later the birds were back in Ontario, sharing recess with school children. Over the next couple of weeks the birds relocated to a site about 30 miles away from their original fledgling grounds.

Operation Migration is now turning its attention to the only remaining flock of whooping cranes. They plan to establish a second flock with its own unique migratory route. The north site, which will be the nesting site, will be in one of three sites in Wisconsin. When Lishman and Duff leave Oshkosh, they'll head south — minus the birds — to scout a migratory route to the winter site in Florida. Next year they'll fly the route with sandhill cranes, and if that trip is successful they'll take whooping cranes in 2001. Operation Migration is privately funded with small donations, but Lishman says that fundraising takes time away from working with the birds and he's looking for a corporate sponsor.

Lishman spent Saturday night talking to the crowd in the Theatre in the Woods about what it's like to fly with the birds. "The birds really know how to enjoy the beauty of the earth. They know instinctively to fly in the calm air of the morning and the evening. We fly at about 500 agl, about 30 knots, where you can really see things." Once the flock is airborne, it doesn't matter if the trike is in the lead. Lishman has flown in front, behind and in the middle of the birds. "It's cool to slow down," Lishman said, "and let them pass you. I call it 'IFR in geese'."

He explained the aerodynamics of the V pattern. "The hardiest bird takes the lead at the point. With each downbeat of his wings, the lead bird creates a wingtip vortex. The trailing birds sense this nuance in the air and surf on it, which makes their job of flying slightly easier. This lets a group of birds of differing abilities fly at a constant speed with a common endurance. The wave generated by the lead bird forms a 'V' and results in the typical chevron formation that we see overhead." Lishman also offered a simpler explanation for the V. "We found out as soon as we lined up behind the birds. They relieve themselves in the air, so we think the V pattern is just plain common sense."

Lishman went quietly about his work until ABC's 20/20 aired on Thanksgiving Day in 1993. Millions of people saw the show, including some folks at Columbia Pictures. Once they bought the story they took some liberty with the plot. Lishman says Hollywood made three basic changes to the story. In truth, Lishman's wife didn't get killed, his 13-year-old daughter didn't fly the second airplane (Joe Duff did), and their airplane wasn't shaped like a bird. "The birds didn't seem to care if the airplane looked like a bird," he said. Columbia promised a share of the profits to Operation Migration, but Hollywood's creative accounting procedures show Fly Away Home losing $37 million. "I guess we owe them now," Lishman says.

The first step in working with the birds is to collect eggs. The eggs are placed in incubators and turned three times a day to simulate what real mama birds do. The imprinting process begins when the handlers play a recording of the aircraft engine and talk to the eggs as they turn them. The first thing the hatchlings see are the handlers, dressed in feathered costumes made out of pillowcases. The young birds stay under heat lamps until they are strong enough to start exercising, then a handler leads them, carrying a small replica of the ultralight aircraft. Again the tape-recorded engine sounds are played to them. When birds are imprinted in this manner they easily transition to the real aircraft when it is introduced.

As the birds grow and develop feathers, they follow the handler and aircraft up and down the runway, which Duff calls "taxi tests." When the handler feels they're ready for their first flight, the birds follow the ultralight as it lifts into the air. If the weather permits, the birds fly twice a day to build their strength and endurance for the fall migration.

The two Canadians were among friends on Saturday night. EAA's Theatre in the Woods is just a short walk from the ultralight camp at Wittman Field. Lishman says, "We started as artists, and now we've become scientists." He's happy that their work has inspired films, photography and other migratory bird projects around the world. Joe Duff adds, "We're aviators. We have the chance to return the favor to those who taught us flight."


Operation Migration's excellent web site gives you more information on history, upcoming projects, and how you can adopt a crane.

JavaScript Menus and DHTML Menus Powered by Milonic

Copyright Aviation Publishing Group. All rights reserved | Privacy Policy | Advertise | Contact Us | XMLRSS | Site Map | Top