Show Slow Itow i Tr r. r 1 Migrating birds h have hate b been n demonstrated demon demonstrated as flight variants by the United Unit United ed II States bureau of biological survey which directs dIrect the work of 1400 amateur nina ama ornithologists l ts the latter specialize special special- Ize in n leg While the n feathered tr traveler ler maintains approximately uniform speed and range now and then ft It Lindbergh h of the specter species breaks brenk records record In three months a leg leg banded banded Arctic tern tm flew lIew from Red lied Island Labrador to Natal Sonth Sooth Africa Af rica which rica which Iti lu K straight line would be miles A ro robin ln winged from Crystal Hay Day Minn to to hurn Mexico 2100 miles In la 18 months |