1916] Dice: Land Vertebrates of Southeastern Washington 



30] 



SAGEBRUSH HABITAT AND ASSOCIATIOX (SAGEBRUSH AREA) 



Exclusive : 



Seeloj^orus graciosus. 

 Phrynosoma doiiglassii doiiglassii. 

 Speotyto cunieularia hypogaea — 



summer. 

 Sturnella neglecta — summer. 

 Chondestes grammaeus strigatus — 



summer. 

 Amphispiza nevadensis nevadensis 



— summer. 



Lanius ludovieianus exeubitorides 



— summer. 

 Canis latrans lestes. 

 Ta.xidea taxus neglecta. 

 Perognathus parvus parvus. 

 Perodipus ordii columbianus. 

 Citellus townsendil. 

 Lopus I'alifornicus wallawalhi. 



Major : 



Scaphiopus bammondii bammondii. 

 Chordeiles virginiauus besperis — 

 summer. 



Sylvilagus nuttallii nuttallii. 



Minor: 



Crotalus oregouus. 



Oxyechus vociferus vociferus — 



summer. 

 Zenaidura macroura marginella- 



summer. 



Pica pica hudsonia — resident. 

 Icterus bullocki — summer. 

 Euphagus cyanocepbaUis — summer. 

 Thomomvs columbianus. 



Beporfed: 



Pedioecetes phasianellus coUun- 



bianus — resident. 

 Centrocercus urophasianus — 



resident. 

 Falco sparverius sparverius — 



summer. 



Asio flammeus — summer. 

 Astragaliiius tristis pallidus — 



summer. 

 Onychomys leucogaster fuscogriseus. 



The sagebrush habitat, where it was studied three miles east of 

 Wallula, is not entirely homogeneous. The dominant plant is the 

 common sagebrush {Artemisia tridentata). Commonly mixed with 

 this are two species of rabbit brush {Chrysothamnus viscidifortis and 

 Chrysothamnus nauscosiis graveolens) . In places one or other of 

 these shrubs may be more abundant than the sagebrush. The hop sage 

 {Grayia spinosa) and the antelope brush (Kunzia tridentata) occur in 

 lesser abundance. In sandy areas a cactus {Opuntia polyacantha) is 

 often found. The wheat bunchgrass (Agropyron spicatum) is found 

 very sparingly, but under native conditions was evidently much more 

 abundant than at present. Where there has been extensive pasturage 

 and tramping by stock the yarrow {Achillea millefolium lanulosa) is 

 common. 



