National Geographic : 1946 Sep
Fish and Wildlife Service, U.S.Dept. ofInterior Flushed from aCalifornia Refuge, Pintails Blot the Sky. Ducks Still Sitting Cover the Water Pintails descend with meteor swiftness, roaring like agale inthe trees. Aplane chased one flock at65miles anhour. Some fly over 2,000 miles of ocean from Alaska to Hawaii;afew gobeyond. California ducks seem torealize when the hunting season opens; many move toMexico immediately.