
66 
Total Broods 
Species --1956°. -:1955 
Black Duck ; 271 °° 316 
Wood Duck 163  ~—«:194 
Ringneck Duck 41 62 
Mallard | 86 75 
Blue -winged 
Teal 26 25 


TABLE II - Summer Brood Survey in the Northeastern States, 1956 - (128 Comparable Areas, Table 1) 
. | Percent of Change 
Young Produced Average Brood ~ Young Produced Broods 
1956... 1955 (1956 1955 ‘Increase Decrease Increase Decrease 
1587. 1 1845.1 5.9 5.8 | 14,0 2 
964.5 1099.6 5.9. 5.7 z 12.3 16.0 
237.5 423.9 5.8 6.8 he | 33.9 
498.0 536.2 5.8 7.1 aa 
208.8 192.5 8.0 7.7 8.5. 4.0 
ee TET 
AVMAT4A OLINVILV 
