Sura Ty 
southern Alberta sntersd the 1949 weterfowl breeding sesasen with about 
8? percent less water on tne preiriss and 77 percent less water on the parklands 
than in 1948. Suitable breeding habitats in the prairis reriona were ennfinsd 
to a fow permanent lakes ond the sasterm and western irrigation districts. This 
condition was undoubtedly of considerable value as the birds were forecsad to sak 
the wore northern areas whers water conditions «ere batter und remained battar 
througnout the ssason. 
On an ares of roughly 65,000 square miles, 957.5 square miles ware sampled 
by ground and sir transects, Despite the panulntion pains in the parklands 
Wnieh at first appeared to offset the losses of oonulation on the prairics, ths 
over-all figures for tis Provinces showed a 17.7 percent decraase in braeding 
birds thia year as compared with 1948. Only the blue-wineed teal showed an 
over-all gain of 17 parcent, all other species resistersd losses varying from 
7 percent for the gadwall ta 68 peresnt for the pintail. 
Table 7.--Average Clutch and Brood Sigs Data 



Glasa I Class JI {flags II Total 
No, of records 
mallard 
-intail 
“idwal? 
sa enate 
Snovreler 
“me ease 
lev, teal 
Cane sbaciz 
Tednead 
“uirlehead 
nedup 
Tey, Soober 
“uaidy 
Tan, eoose 
otal, 
aj] <3 do i 9 6: 
o 
ti 
a 
MCD aF OA  D  h 

fob f w.3 
a # 

Coot 
