An Evaluation Of The Helicopter For Censusing Waterfowl In Louisiana's Coastal Marshes And Ricelands
During the fall of 1969 a helicopter was evaluated for censusing waterfowl in Louisiana by comparing it with a Cessna 210 airplane. The comparisons indicated that while a helicopter equipped with flotation gear was a safe and highly effective vehicle for censusing waterfowl, twice as much actual flight time was required to complete the same amount of work and operational costs were double those for the airplane. About 1.5 times as many waterfowl were recorded from the helicopter as from the Cessna. However, statistical analysis indicated the difference between aircraft in the total number...