Table IV. - Summary of Data Resulting from Aerial Transects Flown in 1953 and 1954. 
Average 
Date . Strata Sq. Mi. Strata Sq. Mi. Sample Total Broods. Brood Size Total Young 
- Unditched 
May 11, 1953 Tidal Marsh 108 2.5 0 “ ia 
Unditched 
June 10, 1953 Tidal Marsh 108 9.3 4 2.8 ll 
Unditched 
July 10, 1953 Tidal Marsh 108 9.3 12 4.6 55 
Ditched 
May 11, 1953 Tidal Marsh 219 8.5 2 4 8 
Ditched 
June 10, 1953 Tidal Marsh 219 8.5 I 8 8 
Ditched 
July 10, 1953 Tidal Marsh 219 8.5 2 6 12 
Unditched 
July 7, 1954 Tidal Marsh 108 9.3 4, 3.3 13 
Unditched 
July 18, 1954 Tidal Marsh 108 9.3 10 4.2 42 
Ditched 
July 7, 1954 Tidal Marsh 219 8.5 6 6 36 
Ditched 
July 18, 1954 Tidal Marsh 219 8.5 3 5 15 
6242 
