278 
Table III. - Summary of Waterfowl Production Data Obtained on the Tuckahoe-Corbin 
City Area in 1953 and 1954. 

1953 1954 
No. Broods Average No. Broods Average 
Species Observed Brood Size Observed Brood Size 
Black duck 12 6.7 12 6.4 
Mallard ] 7.0 2 7.0 
Wood duck 2 8.0 2 = : 
Total Broods 15 16 
Based on total broods observed there was no significant change in brood 
production in 1954 as compared to 1953 on the Tuckahoe area. 
Aerial Transects 
In 1954, two flights were made over each of the aerial transects. Three 
flights were made in 1953. A summary of data resulting from the aerial transects is 
presented in Table IV. 
Brood production on the unditched tidal marsh strata decreased slightly.. 
The decrease is attributed to the lesser number of gadwall broods observed in 1954. 
The total number of black duck broods observed in 1953 and 1954 on the transects 
were about equal. 
On the ditched tidal marsh strata a significant increase in brood production 
was noted, More specifically, this can be considered as an increase in black duck 
production as the broods of no other species were observed in this strata during the 
past two years. 
Conclusions 
Since the data, obtained from the census areas discussed above, can be 
considered indicative of production throughout the major breeding areas of New Jersey, 
the following over-all conclusions can be drawn in regard to waterfowl production in 
1954. The production of mallards and wood ducks is comparable to 1953. Gadwall 
broods were found in lesser numbers while black duck broods showed a slight increase. 
