
250 
Summary 
Four types of brood production data were obtained in 1955 in New York. 
These included ground surveys on wildlife marshes, banding of flightless young 
on wildlife marshes, aerial transect flights and canoe sampling in the 
Adirondacks. In no case did these data indicate any substantial change from 
1953 and 1954, The differences which were observed could nearly all be 
assigned to weather factors and water levels. 

