1951 1952 1953 
ee 
SUMMARY 
Total Provincial sample - square miles 273 261 274 
Breeding pairs per square mile 16.4 17.1 24 
The transects indicate a further increase of breeding pairs in Alberta again 
this year. Increases were greatest in the Calgary South area and in the aspen 
parkland and forest east and north of Edmonton where gains exceeded one hundred 
percent. Moderate increases in the Tilley South and Hanna Northeast areas were 
recorded while the Tilley Northeast areas showed a decrease of 36 percent. 
July transects indicated that heavy spring rains had supplied ample water to 
bring the duck crop to maturity. 
Saskatchewan 
Area ~ Swift Current Southwest (Eastern "Short Grass" Prairies) 
(Bounded on the north by No. 1 Highway, east by No. 4 Highway, and 
on the south and west by the United States and Alberta borders.) 
1951 1952 1953 
Size of sample - square miles 14 ‘14 14 
Breeding pairs per Square mile - May 8.1 15.7 33.9 
Number of water areas per Square mile - May 11.1 8.8 10,5 
Number of water areas per square mile on July 15 
estimated to last all season 2.4 5.8 3.6 
Area - Swift Current North to South Saskatchewan River (Western Section 
Mixed Prairie) 
(Bounded south by No. 1 Highway, east by No. 4 Highway, west by 
Alberta border, and north by the South Saskatchewan River. ) 
Size of sample - square miles 20 20 20 
Breeding pairs per Square mile - May 17 25.9 57.3 
Number of water areas per square mile - May U5..23 3 eer 10.1 
Number of water areas per square mile on July 15 
estimated to last all season 4.7 4.4 4.1 
Area - North of South Saskatchewan River west of Highway No. 4 (Western 
Section - Mixed Prairie) 
(Bounded by the South Saskatchewan River on the south, on the north by 
Township 34, on the east by Highway No. 4, and on the west by the 
Alberta border.) 
1953 Comp. 1953 - New 
1951 1952 to 1952 . Transects 
we Se 
Size of sample - Square miles 16 16 15 32 
No. of breeding pairs per sq. mile - May L3.5 .36 64.2 58.9 
No. of water areas per square mile - May 15.1 15,6 13.4 13.4 
No. of water areas per sq. mile on July 15 
estimated to last all season 5,2 5.4 4.3 6.0 
