32 



FOOD HABITS OF THE GROSBEAKS. 



amount of grain taken bringing the total amount of vegetable food 

 up to 71.19 percent. More than half of the total subsistence con- 

 sists of grass seeds alone. 



The 28.81 percent of animal food is made up almost exclusively of 

 harmful species, among which are the most important pests of the 

 cotton plant, namely, the cotton worm and the cotton boll weevil. 



Although the data on hand are insufficient to determine the exact 

 economic status of the bird, it may be stated with confidence that 

 the gray grosbeak is almost entirely beneficial. 



LIST or SEEDS AXD in^t:rtebrates eaten by the gray grosbeak. 



GRAIN. 



Kafir coi'u (Sorgliiuii rul!j<tir durra). 



WEEDS. 



Joint grass (Paspalum sp.). 

 Crab grass {Syntherisma sp.)- 

 Yellow foxtail (Chcptochloa fflauca). 

 Bur grass {Cenchnis tribuloidcfi). 

 Wire grass (Eleusine indica). 

 Binclweed (Poliigonum sp.). 

 Goosefoot {ChenopodUim sp.). 

 Rough pigweed (Amaranthua retro- 

 flex us). 

 Pokeweed (Phytolacca decandra). 



Carpetweed (Mollugo rerticiUata), 



Sorrel (O. rails sp.). 



Spurge (Euphorbia sp.). 



Croton (Croton sp.). 



Mallow (Malca sp.). 



Sida sp. 



Vervain (^'erbcna sp.). 



Nightshade (Solauum sp.). 



Sunflower (Helianthus sp.). 



COLEOPTERA. 



Bronzy wood-borers (Buprestida^). 

 Long-horned beetles (Cerambycidie) : 



Lioptts crassulus. 



Hippopsis Icmuiscata. 

 Leaf-beetles (Chrysomelidae) : 



Chlamys plicata. 



Scarred snout - beetles (Otiorhyn- 

 chidae) : 



Co m psu s aur icep h alus. 

 True snout-beetles (Cnrculiouidae) : 



Anthonomus grandis. 



Acalles sp. 



HEMIPTERA. 



Cicadas (Cicadidfe) : 

 Cicada sp. 



Leaf-hoppers (.Jassid^). 

 Lantern flies (Fulgorida?). 



OBTHOPTERA. 



Short-horned grasshoppers (Acridii- Long-horned grasshoppers (Locusti- 

 dje) : dfe). 



Syrbula admirabilis. 



LEPIDOPTERA. 



Owlet-moths (Noctuidae) 

 Prodenia ornithogalli. 

 Alabama argillacea. 



