BRIEF REPORT ON WATERFOXL BREEDING SURVEY, SOCTHERN ONTARIO 
1949 
Gea, M. Stirratt 
In general ths duck breeding season wae an sacellent ons, Thers wers lares 
areas of drought in acuthern Ontario south of the Muskoka Ddatrict and many of 
ths small marshes and *syv*n somes of ths larger well-known duck-producing marshes 
dried out after tha middie of May. It is fslt that ths loss of thess araas to 
brasding ducks did not affect ths over-all pictures of a good nseting ssaaon. 
Host southern Ontario marshes ara vary difficult te survoy. Tha following 
table gives & summary in brief of tha information secured by intonsiv? work in 
certain marshes. Population counta of adults and brood were mads by moans of 
fanes or by walking or by both walking and canccing, as ths character of ths 
marsh demandsd. Ducka wera counted on 4 sampls arsa of tha marsh and ths 
birds per squares mils, within ths entire marsh, ware calculated on this basis. 
Black ducks ware by far the most numerous species sncountered. 
Eatimatad Fatimat sd 
Water Food adult ducks young Spaecias 
Marsh Conditions Supply par sq.mile per sg.mile pressnt 
Bredly Marsh Good Good 139 8 Black, Mallard, 
Kent County E-v. Teal 
Brechin Maresh Dry Good Non Nene ----+------ 
Holland Marsh Dry Good =e estate el onlel eet - 
Bradford 
Qsler Mereh Good but low Good 50.6 12.5 Black, 
Laks Scugog water Mallard 
Cameron Creek Good Good 3.3* 18.5** Wood duck, 
Black 
Big Island, Prince 
Edward County Good Goad 19 0 Black Mallard 
Conroy Marsh 
Combermers Good Goad 5 11.9 Lesser Scaup, 
Black 
* Except in River which was not surveyed. 
** Por lineal mile. 
Mr. H. Gs. Lumsden of the Fish and Wildlifs Division, Ontario Departmoant of 
Lands and Forests, carried cut a separate survsy in the Eris District of Southern 
Ontario between July 6 and August 18. He surveyad most of the different types of 
duck snyironmonta by air, read, beat, and on foot, Hs summarizas his findings in 
the following words - "Very few ducks seem to breed in the Laks Eris marshes, 
There ars excellent areas for divine ducka which ars not at prasant FTillad, 
Be 
