UTILITY OF BIRDS IN FIELD AND GARDEN. 281 



Noxious Seeds 

 Bull thistle (Cardnus lanccola- 



ium). 

 Beggar-ticks ( Bidens frondos((.) . 

 Sneezeweed (^Ilclenium antum- 



nale) . 

 Ragweed (^Ambrosia arlcmisii 



folia) . 

 Giant i-agweed {Ambrosia trijida) . 

 Sow thistle (So)ichus oleracens). 

 Dandelion ( Taraxacum laraxa- 



aim). 

 Wild lettuce (^Lactnca ranadeii- 



sis) . 

 Black bindweed (^Poli/gouum con- 



volvuhcs) . 

 Pennsylvania persicaria (Poh/go- 



mnn pcnnsylvanicnm) . 

 Knotweed {Polygomiiti aviculare). 

 Climbing false buckwheat (Polyg- 

 onum scandens) . 

 Bitter dock (Rumex oblusifolius) . 

 Curled dock (Rwmex crispus). 

 Sheep sorrel (Rumex aceiosella) . 

 Crab grass (Panicum sanguina- 



lis) . 

 Pigeon grass {Seiaria vcrlicit- 



lala). 

 Green foxtail grass (Setaria vir- 



idis) . 

 Broom-sedge (Andropogon virgin- 



icus) . , 



eaten by Birds. 



Sheathed rush-grass (Sj^orobuhis 



vaginiflorus) . 

 Poverty grass (Aristida sp.). 

 Yard grass (Eleusine indica) . 

 Bermuda grass {Vynodon dacty- 



lon) . 

 Paspaluni (Paspahnn sp.). 

 Sedge {Gyperus). 

 Sassafras (Sassafras variifolium') . 

 Blackberry (^Rubies villosus) . 

 Pokeberry (Phytolacca decandra) . 

 Partridge pea (Cassia chanice- 



crista) . 

 Sweet clover (Mclilotus alba). 

 Tick-trefoil (Desmodium nudiflo- 



riurn). 

 Snowdrops ( (Fnotherafruiticosa') . 

 Chickweed (Stellaria media). 

 Amaranth (Amaranthus retro- 



fiexus). 

 Trumpet creeiJer (Tccoma radi- 



cans) . 

 Yellow sorrel (Oxalis stricta). 

 Rib-grass (Plantago lanccolata). 

 Spurge (Eu2)horbia maculata) . 

 Lamb's quarters ((lienopodium 



alburn^ . 

 Purslane (Portulaca. oleracea). 

 Jewel weed (Ivtpatiens) . 



