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Aquatic Plants and Percentage of Kach Eaten by the Best Known Wild Waterfowl 
This list compiled by us from data obtained from bulletins published by the U. S. Department of Agriculture, Bureau 
of Biological Survey, Washington, combined with knowledge gained by the examination of the contents of stomachs of wild water- 
fowl, taken from different sections of U. S. and Canada. 
MALLARD 
10% of Food Animal 
90% of Food Vegetation 
22% Sedges 28% Pondweeds 31% Wild Celery 30% Wild Celery 22% Sedges 
Cyperus Brownleaf 15% Pondweeds 17% Pondweeds Cyperus 
Rushes Redhead Grass Sago Pond Plant Sago Pend Plant Rushes 
Burreed Sago Pond Plant Naias Naias Chufa 
Chufa Eel Grass Redhead Grass Redhead Grass Wampee 
Wampee Wigeongrass Brownleaf Brownleaf 16% Pondweeds 
14% Grasses Naias Eel Grass Eel Grass Sago Pond Plant 
Wild Rice 22% Sedges Wigeongrass Wigeongrass Naias 
Wild Millet Bulrush 9% Muskgrass 9% Wapato and Delta Redhead Grass 
9% Smartweeds Three Square Rush 7% Wapato and Delta Duck Potato Brownleaf 
Duck Wheat Chufa Duck Potato 5% Duckweeds Eel Grass 
9% Pondweeds Wampee 5% Duckweeds 5% Muskgrass Wigeongrass 
Sago Pond Plant 11% Grasses 4% Coontail 6% Grasses 14% Grasses 
Naias Wild Rice 4% Grasses Wild Rice Wild Rice 
Redhead Grass Wild Millet Wild Rice Wild Millet Wild Millet 
Brownleaf 7% Smartweeds Wild Millet 6% Sedges 9% Smartweeds 
Eel Grass Duck Wheat 4% Sedges Cyperus Duck Wheat 
Wigeongrass 5% Muskgrass Cyperus Rushes 4% Muskgrass 
6% Duckweeds 4% Delta and Wapato Rushes Burreed 2% Waterlily 
Duck Meat Duck Potato Burreed Wampee Banana ‘“‘ 
6% Coontail 3% Waterlily Chufa 4% Waterlily Yellow ‘ 
5% Wild Celery Banana “ Wampee Banana “‘ Wokas 
4% Hackberries Yellow “ 2% Waterlily Yellow ‘“ American Lotus 
4% Wapato and Delta Wokas Banana “ Wokas 1% Water Milfoil 
Duck Potatoes American Lotus Yellow “ American Lotus 1% Burreed 
3% Acorns 1% Duckweeds Wokas 1% Water Milfoil 4% Unidentified and 
4% Waterlily 
Banana ‘“‘ 
Yellow ‘‘ 
American Lotus 
3% Water Milfoil 
1% Muskgrass 
PINTAIL 
Known as Sprig 
i8% of Food Animal 
87% of Food Vegetation 
1% Milfoil 
1% Wild Celery 
4% Unidentified and 
Miscellaneous 
BLUEBILL 
15% of Food Animal 
85% of Food Vegetation 
American Lotus 
1% Water Milfoil 
3% Unidentified and 
Miscellaneous 

REDHEAD 
14% of Food Animal 
86% of Food Vegetation 
1% Coontail 
16% Unidentified and 
Miscellaneous 

Page 30 
OWOSSO’ AOA’ AAAI WO WB WB’ 
TEAL Blue-Winged 
27% of Food Animal 
73% of Food Vegetation 
Miscellaneous 
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