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 



FIG. 13. BINDWEED (Convolvulus arvensis). 

 A. Aerial Shoot. B. Underground Stem. 



imagined. Evershed examined many pheasant crops x and 



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

 Sci., IX, pp. 63-91. 



