TABLE I - Summer Brood Survey in the Northeastern States, 1952 
(188 Comparable Areas *) 
PERCENT OF CHANGE 



Species Total Broods Young Produced Average Brood Young Produced Broods 
1952 1951 1952 1951 1952 1951 Increase Decrease Increase Decrease 
Black duck 435.2 318.2 2666.6 1919.7 6.1 6.0 38.9 - 37.0 - 
Wood duck 330.1 299.0 2976.4 2610.7 | 9.0 8.7 14.0 - 10.4 - 
Mallard 94.0 48.0 505.2 377.2 5.3 7.8 33.0 - 95.0 - 
Blue-winged teal 26.0 44.0 120.6 211.8 4.6 4.8 - 75.0 - 69.0 

* Number of areas by States: Connecticut, 28; Delaware, 4; Maine, 11; Maryland, 2; 
Massachusetts, 65; New Hampshire, 30; New Jersey, 10; 
New York, 2; Pennsylvania, 19; Rhode Island, 12; 
Vermont, 1; West Virginia, 4. 
£62 
