Restricted mid-summer ground counts, not strictly comparable with those 
made in previous years, indicate a successful hatch this year. A reduction in the 
numbers of adult birds observed is not undérstood at this time, 
Numbers of broods and the size of individual broods observed this year also 
indicate a successful hatch. . 
Table IV. - Summary of Brood Data * 


Species 1950 1951 1952 1953 
Mallard 7.5 ( 50) 6.3 ( 37) 4.9 (11) 6.4 ( 12) 
Gadwall 5.0 ( 1) 6.0 ( 8) 7.0 3) 8.0 ( 1) 
Pintail 6.3 ( 22) 4.8 ( 9) 5.0 ( 3) 6.0 ( 3) 
Green-winged teal 8.6 ( 8) 7.0 ( 7) 5.3 ( 6) 7.5 ( 4) 
Blue-winged teal 7.9 (20) 7.8 ( 6) 7.0 ( 2) 7.0 (1) 
Baldpate 7.6 (31) 5.9 ( 28) 6.2 (14) 6.6 ( 15) 
Shoveler 6.1 ( 7) 6.4 ( 8) 6.3 ( 3) Wan Oe) 
All Pond Ducks 7.3 (139) 6.1 (103) 6.0 (42) 6.4 ( 39) 
Redhead 5.7 ( 17) 6.7 ( 22) 7.5 (13) 6.2 ( 12) 
Canvasback 8.7( 4) 8.4 ( 10) 6.2 ( 6) 5.7 ( 14) 
Lesser scaup 8.3 ( 35) 7.7 ( 59) 7.5 (41) 8.2 ( 13) 
B. goldeneye 6.5 ( 87) 6.0 ( 28) 4.8 (11) 6.0 ( 43) 
Bufflehead 6.6 ( 27) 5.6 ( 6) 4.7 ( 3) 6.0 ( 22) 
Ruddy duck 5.7 ( 30) 6.2 ( 17) 4.3 ( 9) 5.7 ( 4) 
All Diving Ducks 6.6 (200) 7.0 (142) 5.8 (83) 6.4 (108) 
* Bracketed figures refer to numbers of broods averaged. 
