TS 
Comparative Brood and Late-Nesting Indices (Aerial) - Southern Saskatchewan, July Surveys 1952-1956 
Species 1952 ° 1953 1954. 1955 (1956 





| | Not Speciated — 509, 200 183,600 ~ — 100,400 317, 400. 422,200 
. | Pintail 13, 800 32,900- 11,500 +=~=~=+79,400 ~—_—=- 18, 200 = 
j Mallard : 44,000 107,900 82, 900 180,400 ~ —79, 700 
| Baldpate | 18,000 21,100 17,000 21, 300 12,000 
. Shoveler ~  -4:1,°700 13,400 5,200 |. 22,800 ~ 12,000 
(o »| Gadwall 12,500 14, 800 13, 800 28,500 ~ 16, 400 
(2 |B. W. Teal 18,500 35,400 24,100 77,600. —~ 54,300 
iH IG, W. Teal = 1,900 3,500 5,500 8, 000 2,200 
bah (area Puddiers: 120,100 229,000 160,000 418,000 —© 194,800 
0 | Scaup 8, 700 28,500 —«:11, 300 44,300 ——.26, 200 
4 tt Ganvasback 800 15, 700 2,700 15, 500 7,300. 
4 Redhead  .3,200 8, 000 4,200 8,400. - 10,500 
ae Ringneck © | 0 3,000 4,500 3, 700 100 
| Ruddy Duck .  — 7,100 14,000 18, 000 20, 000 21,300 . 
Goldeneye | | 900 0 1, 800 0 0 
Bufflehead _ 0 500. 0 900 - 0 
Scoter 0 2,500 1, 200 4,100 900 
Grand Total Ducks 140, 800 301,200 203,700 514, 900 261, 100 
Coot Broods - 28,770 3, 380 4, 400 21,000 — 81, 800 
Pond. Index | 855,000 2,551,400 3,037,100 3,793, 700 1,753, 200 


AVMA'ITSA TVALNAD 

