95 
Area - Tilley South (Eastern "Short Grass" Prairies) 
(Via: Brooks, Taber, Lethbridge, Del Bonita, Pakowki, 
Seven Persons, Medicine Hat, Tilley.) 
1951 1952 1953 
Size of sample - square miles 36 36 38 
Breeding pairs per square mile - May 11.9 18 24.3 
Number of water areas per square mile - May 3.6 7.4 7.8 
Number of water areas per square mile on July 15 
estimated to last all season 2.5 2.6 2.7 
Area - Tilley Northeast (Eastern "Short Grass" Prairies) 
(Via: Suffield, Jenner, Empress, Cereal, and Hanna to Tilley.) 
Size of sample - square miles 38 35 37 
Breeding pairs per square mile - May 33.1 29.1 18.5 
Number of water areas per square mile - May 4.9 9.5 12.8 
Number of water areas per Square mile on July 15 
estimated to last all season 3.7 4.0 4.0 
Area - Hanna Northeast (Aspen Parklands) 
(Via: Cereal, Consort, Czar, Killam, Hanna.) 
Size of sample - square miles 29 26 28 
Breeding pairs per square mile - May 42.9 24,8 38.4 
Number of water areas per Square mile - May 7.7 13 13 
Number of water areas per square mile on July 15 
estimated to last all summer 6.3 7.4 9.4 
Area - Tofield Southeast (Aspen Parklands) 
(Via: Tofield, Wainwright, Vermilion, Two Hills, Ranfurly, 
Hilliard, Tofield) 
Size of sample - square miles 34 34 37 
Breeding pairs per Square mile - May 5.9 5.9 13 
Number of water areas per square mile - May - - 9.8 
Number of water areas per Square mile on July 15 
estimated to last all season - - 4.7 
Area ~ Tofield Southwest (Aspen Parklands) 
(Via: Tofield, Camrose, Bashaw, Ponoka, Thorsby, Leduc, New Serepta) 
Size of sample - square miles 27 27 26 
Breeding pairs per square mile - May 3 4.3 10.6 
Number of water areas per square mile - May . - - 15.6 
Number of water areas per square mile on July 15 
estimated to last all season - ~ 8.3 
Area - Tofield North (Aspen Forest) 
(Via: Mundare, Willingdon, Kaleland, Lafond, Ashmont, Vimy, Edmonton. ) 
size of sample - square miles 26 24 25 
Breeding pairs per square mile 3.3 5 929 
Number of water areas per square mile - May - - 11.3 
Number of water areas per square mile on July 15 
estimated to last all season - - 2.6 
