Table 10.--Breeding-pair use of small water areas, 1951 
[Small areas are those of less than 2 acres; large areas are 2 acres 
or more. Each period includes one complete coverage of the study area] 
Blue-winged Gadwall Mallard 
teal 
Total |Percent| Total |Percent/Total [|Percent| Total | Percent 
number| using |number| using jnumber| using | number] using 



Number of Pintail 
areas 
holding 






Period 
b /25=5/% 
5/55/43 





5/14-5/22 22 
5/23-6/3 33 
6/4-6/13 
6/14-7/9 

Table 11,--Average percentage distribution of breeding pairs, by species 
and by pothole size, 1950-53 

porecntags in pores = 
0-.09 | O.1-.3 2.9. | e126.) 2- 5-11.9 | 120+ 
Species acres acres acres acres eae acres acres 









B-W Teal 5.8 20.7 25.3 34.8 
Gadwall 6.1 19.5 25.4 36.0 
Mallard 7.5 18.2 25.3 34.8 
Pintail 10.1 17-4 23.2 34.9 
Shoveller Tiage) 21.1 ol .7 38.6 
Redhead 2.2 6.5 26.1 62.5 
Ruddy ess 10.2 29.9 59.9 
Lesser Scaup 1.2 8.3 17.9 70.2 
Baldpate Mover 12.2 19.5 63.5 
Canvasback 10.0 60.0 
G-W Teal 290.4 52.9 
Other O k5.0 
All species 37 3 
Percent of 
total acreage 6.7 
Sf 
