RYO OO 
YY 
y~ 
WOW EWI’ NOONE OOO OOO OO 
Aquatic Plants and Percentage of Each Eaten by the Best Known Wild Waterfowl 

MALLARD 
of Food Animal 
of Food Vegetation 

13% 
87% 

YY fowl, 
ye 
y 10% 
90% 
22% 
SS 
ee 14% 
4 
we 9% 
a 
we 
Yo 
ee 
Yee 
ae 6% 
\ 
yy 
So 
aa 
ee 
v4 wy 
Ww Page 34 
4% 
4% 
3% 
4% 
BW OOO OA AO BA HA BRB BBB” 
Sedges 
Cyperus 
Rushes 
Burreed 
Chufa 
Wampee 
Grasses 
Wild Rice 
Wild Millet 
Smartweeds 
Duck Wheat 
Pondweeds 
Sago Pond Plant 
Naiad 
Redhead Grass 
Brownleaf 
Eel Grass 
Wigeongrass 
Duckweeds 
Duck Meat 
Coontail 
5% Wild Celery 
Hackberries 
Wapato and Delta 
Duck Potatoes 
Acorns 
Waterlily 
Banana “‘ 
Yellow “‘ 
American Lotus 
Water Milfoil 
Muskgrass 


28% 
22% 
PINTAIL 
Known as Sprig 
of Food Animal 
of Food Vegetation 
Pondweeds 
Brownleaf 
Redhead Grass 
Sago Pond Plant 
Eel Grass 
Wigeongrass 
Naiad 
Sedges 
Bulrush 
Three Square Rush 
Chufa 
Wampee 
11* Grasses 
1 
= 
5% 
4% 
3% 
1% 
1% 
1% 
4% 
Wild Rice 
Wild Millet 
» Smartweeds 
Duck Wheat 
Muskgrass 
Delta and Wapato 
Duck Potato 
Waterlily 
Banana ‘‘ 
Yellow “ 
Wokas 
American Lotus 
Duckweeds 
Milfoil 
Wild Celery 
Unidentified and 
Miscellaneous 




15% 
85% of Food Vegetation 
31% 
15% 
2% 
1% 
3% 
BLUEBILL 
of Food Animal 
Wild Celery 
Pondweeds 
Sago Pond Plant 
Naiad 
Redhead Grass 
Brownleaf 
Eel Grass 
Wigeongrass 
Muskgrass 
Wapato and Delta 
Duck Potato 
Duckweeds 
» Coontail 
Grasses 
Wild Rice 
Wild Millet 
Sedges 
Cyperus 
Rushes 
Burreed 
Chufa 
Wampee 
Waterlily 
Banana “‘ 
Yellow ‘“ 
Wokas 
American Lotu 
Water Milfoil 
Unidentified and 
Miscellaneous 
REDHEAD 
14% of Food Animal 
86% of Food Vegetation 
30% Wild Celery 
17% Pondweeds 
Sago Pend Plant 
Naiad 
Redhead Grass 
Brownleaf 
Eel Grass 
Wigeongrass 
9% Wapato and Delta 
Duck Potato 
5% Duckweeds 
5% Muskgrass 
6% Grasses 
Wild Rice 
Wild Millet 
6% Sedges 
Syperus 
Rushes 
Burreed 
Wampee 
4% Waterlily 
Banana “‘ 
Yellow “ 
Wokas 
American Lotus 
1% Water Milfoil 
1% Coontail 
16% Unidentified and 
Miscellaneous 

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- 
taken from different sections of U. S. and Canada. 
TEAL Blue-Winged 
27% 
73% 
22% 

16% 
14% 
9% 
4% 
2% 
1% 
1% 
4% 
of Food Animal 
of Food Vegetation 
Sedges 
Cyperus 
Rushes 
Chufa 
Wampee 
Pondweeds 
Sago Pond Plant 
Naiad 
Redhead Grass 
Brownleaf 
Eel Grass 
Wigeongrass 
Grasses 
Wild Rice 
Wild Millet 
Smartweeds 
Duck Wheat 
Muskgrass 
o Waterlily 
Banana “ 
Yellow “ 
Wokas 
American Lotus 
Water Milfoil 
Burreed 
Unidentified and 
Miscellaneous 
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