100 
Area - Calgary North (Western "Short Grass" Prairies, from Endiang 
Aspen Parkland) 
(Via: Husser, Morrin Watt, Endiang, Ranching, Big Valley, Stettler, 
Delburne, Innisfail, Olds, Sundre, Radnor, Calgary.) 
1951 1952 1953 1954 
Size of sample - square miles 40 39 40 40 
Breeding pairs per square mile - May 15.1 20.4 28.6 41.3 
Number of water areas per sq. mi. - May 7.8 10.8 12 21.6 
No. of water areas per sq. mi. on July 15 
estimated to last all season 6.1 3.5 9.7 eas i 
Area - Tilley South (Eastern "Short Grass" Prairies) 
(Via: Brooks, Taber, Lethbridge, Del Bonita, Pakowki, Seven Persons, 
Medicine Hat, Tilley.) 
Size of sample - square miles 36 38 38 
Breeding pairs per Square mile - May 11.9 18 25.1 28,1 
Number of water areas per sq. mile - May . £6 7.4 7.8 4.3 
No. of water areas per Sq. mi. on July 15 
estimated to last all season 2.5 2.6 ol 1.1 
Area - Tilley Northeast (Eastern "Short Grass" Prairies) 
~ (Via: Suffield; Jenner, Empress, Cereal and Hanna to Tilley.) 
Size of Sample - square miles 38 35 37 37 
Breeding pairs per square mile - May 33.1 30.6 29.9 30.7 
Number of water areas per sq. mile - May 4.9 9.5 10.0 5.9 
No, of water areas per square mile on 
July 15 estimated to last all season Ear: 4.0 4.0 253 
Area - Hanna Northeast (Aspen Parklands 
~ (Via: Cereal, Consort, Czar, Killam, Hanna.) 
Size of sample - square miles 29 26 28 28 
Breeding pairs per square mile - May 42.9 22.1 26.7 23.8 
Number of water areas per sq. mile - May com 13.0 16.4 8.2 
No. of water areas per sq. mil on July 15 
estimated to last all season 6.3 7.4 9.4 4.4 
