Oct 
Table 5. Waterfowl Population Indices by Species - Southern Manitoba - May 1959 

Stratum "A" Stratum "B" Strata "A" & "B" Species* Percent 
| Pairs & Flocked Pairs & Flocked Pairs &® Flocked Composi- Change 
Species Drakes Ducks Drakes Ducks Drakes Ducks tion 1958-59 
Pintail 17,900 1,000 22,900 10,000 1o, 800 11,000 6.0 - Uh.o 
Mallard 157,700 600 145,900 - 303,600 600 44.6% - 38.1 
Baldpate 15,800 8,800 13,800 7,200 . 29,600 16,000 4.3% - dbo 
Shoveliler 18,900 200 17,100 11,900 36,000 12,100 5.36 f 27.7 
Gadwall 3,500 400 1, 400 - 4,900 LOO 7% - 36.4 
B. W. Teal 72,100 1,100 68,700 16,200 140,800 17,300 20.74 f 12.7 
G. W. Teal 2,100 - 2,400 - 4,500 = 7h - 37.5 
Scaup 27,000 72,000 21,000 58, 300 48,000 130, 300 7.0% - 31.9 
Canvasback 14,100 900 3,800 ~ 17,900 900 2.66 - 68.4 
Redhead 11,900 5,400 11,400 9,500 23, 300 14,900 3.4% - 12.4 
Ringneck 1,800 1,000 8,100 4,800 9,900 | 5,800 1.5% ff 76.8 
Ruddy 5,400 1,200 3, 300 3, 600 8,700 4,800 1.34 £ 40.3 
Goldeneye 700 300 8,600 - 9, 300 300 1.4%) # 304.3 
Bufflehead 1,000 - 2,900 - 3,900 - 6% f-¢ 14.7 
Scoter ~ 1,600 - 7,100 = 8,700 - 
Total 349,900 94,500 331, 300 128, 600 681, 200 223,100 100.1% - 28.8 
* The species composition and percent change data refer only to those birds seen as 
' gingles and psirs. 
