. . Fig. 26. —Tubers of sago pondweed. (Natural size.) (From Circular No. 81, Bureau ofBiological Survey, United States Department of Agriculture.) food as is S. latifolia in the west. The Indians of Oregon usethe tubers as food. Mr. McAtee has identified for Dr. J. C. Phillips anotherduck food which grows in Wenham Lake, and which provesto be quillwort {Isoetes echinospora). Smartweeds {Polygonum) are eaten by many wild-fowl,and certain water grasses are favorite foods of some Wilton Lockwood, who has had much experience
. . Fig. 26. —Tubers of sago pondweed. (Natural size.) (From Circular No. 81, Bureau ofBiological Survey, United States Department of Agriculture.) food as is S. latifolia in the west. The Indians of Oregon usethe tubers as food. Mr. McAtee has identified for Dr. J. C. Phillips anotherduck food which grows in Wenham Lake, and which provesto be quillwort {Isoetes echinospora). Smartweeds {Polygonum) are eaten by many wild-fowl,and certain water grasses are favorite foods of some Wilton Lockwood, who has had much experience in rear-ing wild-fowl, recommends Poa aquatica, a European plantwhich grows naturally here. Probably Glyceria grandis, thereed meadow grass, which somewhat resembles P. aqiiatica,would be equally attractive. It grows along the banks ofstreams and in wet meadows. Wild Geese eat the roots of certain reeds and are very. CONSERVATION OF GAME BIRDS. 581 fond of young and tender grass and grain. If a field, near apond or river, is sown with winter wheat or winter rye, theyoung plants will attract Geese, because such plants offerthem a supply of green food late in the fall and early in spring,when other green vegetation is not plentiful. The Wood Duck sometimes may be attracted to nestingboxes made to resemble hollow limbs. Attracting Upland Game Birds. The Bob-white prefers a rich farming and grain-raisingcountry to all others, but it is also very important to furnishthis bird good cover, and in a thrifty truck-farming region,where clean cultivation prevails, there is little cover left forthe Quail. Thickets along fences, bushy swamps, weed-grownfields or thick growths of cane, corn or other grains furnishdesirable cover, but winter cover is most important. Grainraising helps fatten Bob-whites, as they pick up much wastegrain in the fields, but weeds where plentiful will take theplace of grain, as the Q
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