362 ORNITHOLOGY. 



On the foot-hills of the range, on each side the cafion, were a few 

 scattered mountain mahogany and cedar trees, and among these we found 

 Hchu'nithophaga virg'mice, Contopus horealis, Empidonax obsciirus, and Picicorvus 

 cohimhianus. 



A decided step toward a different faunal district, besides the addition 

 of DoUchonyx onjzivorm, Podkeps crisUdus, Turdus swaimorii, Dendrocca 

 toiinsendi, D. occidentalis, Lbxia americana, L. leucoptera, Empidonax liam- 

 niondi, and ContopHs horealis io our list of birds, was the cir(;umstance that 

 the large white-tailed hare, Lepm camprstris, replaced the black -tailed L. 

 callofis, which, up to this time, had been the only one observed. 



Species of general distribution observed at this locality were as follows: 



Khiiiofiryplius aura Common. 



Aijiiila canadensis Common. 



Buteo swainsoiii Common. 



Hiniiulo horreonuu Common. 



Scolecophagus cyau()cephalus.^4/vj<Hr/an/. 

 Colaptes mexicanus Common. 



Aicliibuteo saiK^ti-juhaniiis . . . Common. Corvns cariiivorus Common. 



Colliuio excubitoroides Common. Zeuajdura caroliuousis Abundant. 



27. " Camp 22," Bubij Valley (September 4-5, 1868).— The surroundings 

 of this camp were much the same as those at the Overland Ranche, except 

 that the valley was uncultivated, while the foot-hills were higher ; besides, 

 we had left the marshes behind. The stream was bordered with willows 

 entirely across the valley, while in a marshy spot stood (piite an extensive 

 grove of very tall willows and alders. In the latter, considerable numbers 

 of Loxia amerieana and L. leucoptera were found, besides Dendrwca (estiva, 

 Empidonax pusillus, and Contopus richardsoni, while GaUinago ivilsoni was 

 abundant on marshy ground, where was also a small black Rail, supposed 

 to be Porzana jamaicensis. In the sage-brush were Collurio excubitoroides, 

 Oreoscoptes montanus, Spizella breweri, Pooecetes confinis, and Chond^.<ites 

 grammaca, while along the stream we found Passerculm alaudinus and 

 Melospiza fallax. In an elevated park, at the head of the main canon in 

 the foot-hills, tlie following species were observed : Empidonax hammondi, 

 Contopus richardsoni, Chrysomitris pinus, Canape obscura, Ceryle alcyon, 

 Colaptes mexicanus, Buteo swainsoni, Falco sparverius, Zentedura carolinensis, 

 Selasphorus platyvercns, Pooecetes confinis, Chondestes grammaca, Spizella 

 breweri, and Pipilo chtorurus. 



