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* Aquatic Plants and Percentage of Each Eaten by the Best Known Wild Waterfowl 4 
yo This list compiled by us from data obtained from bulletins published by the U. S. Department of Agriculture, Bureau j 
= of Biological Survey, Washington, combined with knowledge gained by the examination of the contents of stomachs of wild water- > 4 
ye fowl, taken from different sections of U. S. and Canada. . 
yo MALLARD PINTAIL BLUEBILL REDHEAD TEAL Blue-Winged 4 
° Known as Sprig ay 4 
ye 10% of Food Animal 13% of Food Animal 15% of Food Animal 14% of Food Animal 27% of Food Animal 
sae 90% of Food Vegetation |87% of Food Vegetation |85% of Food Vegetation |86% of Food Vegetation 73% of Food Vegetation ay 4 
>” 22% Sedges 28% Pondweeds 31% Wild Celery 30% Wild Celery 22% Sedges 
VE Cyperus Brownleaf 15% Pondweeds 17% Pondweeds Cyperus a> 4 
»¢ Rushes Redhead Grass Sago Pond Plant Sago Pend Plant Rushes 3 
WE Burreed Sago Pond Plant Naiad Naiad Chufa a> 4 
YY Chufa Eel Grass Redhead Grass Redhead Grass Wampee 
ZF Wampee Wigeongrass Brownleaf Brownleaf 16% Pondweeds a> 4 
»- 14% Grasses Naiad Eel Grass Eel Grass Sago Pond Plant ay 4 
Ga Wild Rice 22% Sedges Wigeongrass Wigeongrass Naiad 
yy? Wild Millet Bulrush 9% Muskgrass 9% Wapato and Delta Redhead Grass eA 
LE 9% Smartweeds Three Square Rush 7% Wapato and Delta Duck Potato Brownleaf 
YY Duck Wheat Chufa Duck Potato 5% Duckweeds Eel Grass 4 
YE 9% Pondweeds Wampee 5% Duckweeds 5% Muskgrass Wigeongrass 
»* Sago Pond Plant 11% Grasses 4% Coontail 6% Grasses 14% Grasses a> 4 
Oe Naiad Wild Rice 4% Grasses Wild Rice Wild Rice 
‘y? Redhead Grass Wild Millet Wild Rice Wild Millet Wild Millet TS 
ye Brownleaf 7% Smartweeds Wild Millet 6% Sedges 9% Smartweeds s 
Eel Grass Duck Wheat 4% Sedges Cyperus | Duck Wheat 4 
yo Wigeongrass 5% Muskgrass Cyperus Rushes 4% Muskgrass 
re 6% Duckweeds 4% Delta and Wapato Rushes Burreed 2% Waterlily ye 
y¢ Duck Meat Duck Potato Burreed Wampee Banana “‘ > 4 
3 6% Coontail 3% Waterlily Chufa 4% Waterlily Yellow “ 4 
Ye 5% Wild Celery Banana “‘ Wampee Banana “‘ Wokas Te 
Pe 4% Hackberries Yellow ‘“ 2% Waterlily Yellow “ American Lotus 
»% 4% Wapato and Delta Wokas Banana “ Wokas 1% Water Milfoil 4 
ea Duck Potatoes American Lotus Yellow “ American Lotus 1% Burreed 
y? 3% Acorns 1% Duckweeds Wokas 1% Water Milfoil 4% Unidentified and 4 
: 4% Waterlily 1% Milfoil American Lotus 1% Coontail Miscellaneous 
yo Banana “ 1% Wild Celery 1% Water Milfoil 16% Unidentified and 4 
a Yellow ‘‘ 4% Unidentified and 3% Unidentified and Miscellaneous te 
yo American Lotus Miscellaneous Miscellaneous ey 4 
ye 3% Water Milfoil 
»” 1% Muskgrass a 4 
a 
Y Page 34 ae 
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