DISTRIBUTION OF WEEDS 



29 



results of these experiments it is probable that seed-eating birds 

 are far more active as distributors of weed seeds than is usually 



--A 



FIG. 13. BINDWEED (Convolvulus arvensis). 

 A. Aerial Shoot. B. Underground Stem. 



imagined. Evershed examined many pheasant crops * and 



1 Evershed, A. F. C. H. (1918), " Pheasants and Agriculture," Journ. Ag. 

 Sci., IX, pp. 63-91. 



