UTILITY OF BIRDS IN FIELD AND OARDEN. 281 



Noxious Seeds 



Bull thistle {Carduus lanceola- 

 ium) . 



Beggar-ticks ( Bidens frondosa) . 



Sneezeweed (Ileleniimi autum- 

 nale) . 



Ragweed (Ambrosia arleniisii 

 folia) . 



Giant ragweed (Ambrosia trifida) . 



Sow thistle (Sonchus oleraceus). 



Dandelion ( Taraxacum taraxa- 

 cum) . 



Wild lettuce (Lactuca canaden- 

 sis) . 



Black bindweed (^Polygonum con- 

 volvulus) . 



Pennsylvania persicaria (^Polygo- 

 num 2}ennsylvanicum) . 



Knotweed (Polygonum aviculare). 



Climbing false buckwheat (Polyg- 

 onum scandens) . 



Bitter dock (Rumex oblusifoliiis) . 



Curled dock (Rumex crispus) . 



Sheep sorrel (Rumex acetosella). 



Crab grass (Panicum sanguina- 

 lis). 



Pigeon grass (Seiaria verlicil- 

 lata) . 



Green foxtail grass (Setaria vir- 

 idis) . 



Broom-sedge (Andropogon virgin- 

 icus) . 



eaten by Birds. 

 Sheathed rush-grass (Sporobulus 



vaginiflorus) . 

 Poverty grass (Aristida sp.). 

 Yard grass (Eleusine indica) . 

 Bermuda grass (Cynodon dacly- 



lon). 

 Paspalum (Paspalum sp.). 

 Sedge (Cyperus). 

 Sassafras (Sassafras variifolium) . 

 Blackberry (Rubus villosus). 

 Pokeberry (Phytolacca decandra) . 

 Partridge pea (Cassia chamce- 



crista) . 

 Sweet clover (Melilotus alba). 

 Tick-trefoil (Desmoditmi nudiflo- 



rium) . 

 Snowdrops ( (Enolherafruiticosa) . 

 Chickweed (Stellaria media) . 

 Amaranth (Amaranthus retro- 



flexus) . 

 Trumpet creeper (Tecoma radi- 



cans) . 

 Yellow sorrel (Oxalis stricta). 

 Rib-grass (Plantago laneeolala) . 

 Spurge (Euphorbia maculala) . 

 Lamb's quarters ( Chenopodium 



album). 

 Purslane (Portulaca oleracea). 

 Jewel weed (Impatiens) . 



