105 
Table II - July 15 Brood Count - Suffield-Jenner Area 
ea a 
Female 
Species Class I Class 2 Class 3 Seen Only 
a a a a en as aeey 
Pintail (25 broods) = 8, 11, 10, ?, ? 16 
2,6, ?, ? 
Blue-winged teal (18 broods) - 9, 12, 14, 7, 6 4 
10, 8, 9, 10, 
7, 7, 10, 8, ? 
Shoveler (7 broods) 9, 9, 8, 10, 5 a 2 
Baldpate (4 broods) 5, 7 9 " l 
Mallard (3 broods) 8 3 ? - 
Gadwall (2 broods) 2 . 12 - - 
Green-winged teal (lbrood) - ? - i 

Unidentified (2 broods) 4 7 - . 
Grand Total - 62 broods. 
Broods per square mile (5.5 square mile sample) - 11.3 
Where only part of a brood was seen - a question mark is used under 
the appropriate age class. 
Strathmore - Calgary Area, Alberta 
This area was selected for intensive coverage as it is typical of the 
western more humid section of the short grass plains of southern Alberta. The 
land is nearly all cultivated. There is considerable irrigation. 
The study area is laid out as a transect twenty-five miles long totalling 
6,25 square miles. This shape is the most convenient for aircraft coverage. 
Three ground transects were run through the area in May to establish 
the breeding population, the results of which are given below. The United States 
Fish and Wildlife Service flew the transect May 16 and 26 for comparison with 
ground data obtained on similar dates. An intensive brood count was made by 
ground and air on July 8. By this date many pintail broods were flying and the 
count has little value in establishing the success of the nesting season. 
Table III - Number of Breeding Pairs *- Strathmore - Calgary Area 
Species May 1 May 16 May 27 
Pintail 254 229 183 (63 broods) 
Mallard 76 71 49 ( 7 broods) 
Shoveler 27 33 43 
Baldpate 20 24 | 24 
Scaup 11 22 23 
Blue-winged teal 4 37 25 
Green-winged teal 5 4 3 
Gadwall 3 3 2 
Canvas back 1 1 - 
Unidentified - 5 2 
Totals 401 429 354 
Pairs per square mile 64, 1 68.6 56.6 
* Number of breeding pairs is sum of observed pairs and territorial drakes. 
