100 
Area - Tilley South (Eastern Short Grass Prairies ) 
(Via: Brooks, Taber, Lethbridge, Del Bonita, Pakowki, 
Seven Persons, Medicine Hat, Tilley.) 
1951 1952 
Size of sample - square miles 36 36 
Breeding pairs per square mile - May 11.9 18.0 
Number of water areas per sq. mile - May 3.6 7.4 
Number of water areas expected to last all z2.5 2.6 
season on July 15 - square miles 
Area - Tilley Northeast (Eastern Short Grass Prairies) 
(Via: Suffield, Jenner, Empress, Cereal, and Hanna to Tilley.) 
Size of sample - square miles 38 35 
Breeding pairs per square mile - May 33.1 - 29,1 
Number of water areas per sq. mile - May 4.9 9.5 
Number of water areas expected to last all 3.7 4.0 
season on July 15 - square miles 
Area - Hanna Northeast (Parklands) 
(Via: Cereal, Consort, Czar, Killam, Hanna.) 
Size of sample - square miles 29 26 
Breeding pairs per square mile ~ May 42.9 24.8 
Number of water areas per sq. mile - May ~~ —i72«.7 13.0 
Number of water areas expected to last all 
season on July 15 - square miles 6.3 7.4 
Area - Tofield Southeast (Parklands) 
(Via: Tofield, Wainwright, Vermilion, Two Hills, Ranfurly, 
Hilliard, Tofield.) 
Size of sample - square miles 34 34 
Breeding pairs per square mile - May 5.9 5.9 
Number of water areas per sq. mile - May 2.9 2.5 
Number of water areas expected to last all 
season on July 15 - square miles 1.7 ‘5 
Area - Tofield Southwest (Parklands) 
(Via: Tofield, Camrose, Bashaw, Ponoka, Thorsby, Leduc, 
New Serepta.) 
Size of sample - square miles 27 27 
Breeding pairs per square mile ~ May 3.0 4,3 
Number of water areas per square mile - May 1.8 2.6 
Number of water areas expected to last all 
season on July 15 - square miles — 6 1.4 
