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Jewish families will kindle a light to fight the darkness of poverty. These families will make a contribution to the Jewish Fund for Justice to support its grantmaking program that seeks to alleviate poverty in America. To join in this special celebration. we suggest the follow- ing candlelighting ceremony: siA s we kindle this fifth light of the menorah, we reach out beyond our family to affin-n that we are part of a larger community. We join with other Jewish families in gratitude for the blessings this country has offered our people. It is our privilege to work to make these blessings available to everyone. May the brightly lit candles on all the menorahs in America tonight join to extinguish the darkness of pov- erty in this land of plenty. PP This contribution on the fifth night of Chanukah is from name address in honor of in memory of (We will acknowledge this contnbution to the honoree if you will give us the address on the back of this coupon.) Please send to the Jewish Fund for Justice 1725 K Street NW. Suite 301 Washington. D.0 moos The lewLsh Fund for lustice is endorsed by • The Commission oo Sodal Action of the Union For more information. of American Hebrew Congregations and the Central Conference of American Rabbis • The National Sodal Janke Committee of the Rabbinical Assembly of America • The Reconstructionin Rabbinical Association • The United Synagogue of America 68 FRIDAY, DECEMBER 2, 1988 call Jewish humi fur Just‘ce at (202) 861-0601. Yossi Leshem joins a flight of storks over Israel. Soaring With The Great Birds Improves Air Safety In Israel RICK RAH. Special to The Jewish News erusalem — On crystal clear days in Spring and autumn, thousands of Israeli birdwat- chers are absorbed in their passionate perusal of the sky as flocks of migratory birds soar overhead. For Israeli Air Force pilots at the helm of super sohpisticated jet fighters, however, sharing airspace with birds is dangerous and sometimes fatal. "It happened during a routine training maneuver," said an air force colonel who flys a Skyhawk jet. "I was fly- ing at an altitude of approx- imately 3,000 feet when I sud- denly heard a terrible explo- sion. Something hit my neck with tremendous force. I didn't understand what was happening and totally black- ed out for a few moments. When I came to I first check- ed whether my plane could fly and found it could, but notic- ed that air was entering the cockpit through a shattered canopy. "My neck was covered with blood, but I couldn't be sure that it was my blood. I look- ed down and saw feathers and shreds of flesh on the floor of the plane. Only then did I realize I had collided with a bird." The Israeli Air Force says it has lost more aircraft to col- lisions with large birds dur- ing the last decade than to all Arab air forces combined. IAF studies indicate that j 15-pound pelican meeting head on with a jet fighter traveling at nearly the speed of sound has an impact equal to 100 tons. Tragically, several air force pilots have lost their lives in such accidents. Today, in cooperation with the IAF, Yossi Leshem, direc- tor of the Israel Raptor Infor- mation Center, and conserva- tionists from the Society for the Protection of Nature are tracking the migration routes of the one million birds arriv- ing in Israel each year. They feed information into advanc- ed computers which control flight plans for IAF aircraft to prevent these mid-air mishaps. "It was because of my doc- toral dissertation that I ap- proached the air force," says the 40-year-old Leshem. "I wanted to track the bird flight patterns from a light plane and I discovered the air force was interested in exact- ly that data. For both of us it worked out quite well." Yossi found a motorized glider to realize his primary ambition. He was soon soar- ing with a flock of storks as they made their way along the full length of Israel. He is trying to discover why species of large birds — eagles, buzzards and storks — have an affinity for travel over the shores of Israel. Why, as logic or nature would seem to indicate, do these raptors simply not take a more direct route to their nesting destinations? "Yes, it is a roundabout way of getting where they want; Europe and Asia in the spring and Africa in the fall," states Yossi. "But these birds have very heavy bodies and wide, long wings that are specially adapted to soaring and gliding. They can't really sus- tain active flights over long periods of time as smaller birds do." He explains that Israel's geographical position, as the land bridge between the Eurasian and African con- tinents, is the reason for the crowded conditions that exist for more than six months of the year. "Large birds must fly over land where large col- umns of warm, rising air call- ed thermals are formed," ex- plains Yossi. "They simply can't form over large masses of water such as the Mediter- ranean." Raptors, therefore, travel most efficiently over long narrow valleys, cliffs, and long mountain ranges where conditions are favorable for their zig-zag, 5,000-mile journey. "We now have much more accurate data on the altitudes that raptors reach — between 300 and 4,000 feet — and their air speeds — usually between 20 and 30 miles per hours. I think we can also say that they arrive at a fairly fix- ed time over Israel and fly in a very regular pattern, something they've been doing since the days of ancient pro- phets." Now every IAF pilot boar- ding his Kfir or F-16 does so with a detailed map of the daily migration patterns.