LIST OF BIRDS 
COLLECTED 
ON THE COLORADO EXPEDITION, 
The collections in Zoology made by Mr. Mollhausen, zoologist of the expedition, consisted 
chiefly of birds. The mammals, reptiles, and fishes were like those previously obtained in the 
same regions by the naturalists connected with the expeditions of Captain Sitgreaves, Captain 
Whipple, and Lieutenant Parke. Some points of special interest, however, will be found in 
the indications of geographical distribution afforded by the list of birds. 
All the species mentioned in the list of birds are fully described in the General Report on 
Birds in volume IX of the Pacific Railroad Report, at the pages respectively indicated by the 
figures in parenthesis immediately following the scientific names. All the specimens collected 
on Lieutenant Ives’s expedition will be found enumerated in the tables at the end of the arti- 
cles on the several species. 
Picus harrisii, Aud., (87.) Harris’s woodpecker. Fort Defiance. 
Picus scalaris, Wagl., (94.) Fort Yuma. , 
Centurus uropygialis, Baird, (111.) Gila woodpecker. Fort Yuma. This species appears 
to extend from the valley of the Lower Gila to Cape St. Lucas. 
Golaptes Mexicanus, Sw., (120.) Red-shafted flicker. Mojave valley. 
Atthis cost, Reich., (138.) Coste’s humming bird. Colorado river. 
Antrostomus nuttalli, Cassen, (149.) Nuttall’s whippoorwill. Fort Defiance and the Moqui 
villages. 
Myiarchus Mexicanus, Baird, (179. | Ash-throated flycatcher. Fort Yuma and the Colorado. 
Sayornis sayus, Baird, (185.) Say’s flycatcher. Fort Yuma. 
Empidonax obscurus, Baird, (200.) Wright's flycatcher. Fort Yuma and the Colorado. 
Pyrocephalus rubineus, Gray, (201.) Red flycatcher. Fort Yuma. 
Turdus migratorius, L., (155.) Robin. Fort Yuma and the Colorado. 
Turdus nevius, Gm., (219.) Oregon robin. Colorado river. 
Sialia mexicana, Sw., (223.) Western blue bird. Fort Yuma. , 
Sialia arctica, Sw., (224.) Mountain blue bird. Fort Defiance, Fort Yuma. 
Regulus calendula, Licht.,(226.) Ruby-crowned wren. Fort Yuma and the Colorado. 
Anthus ludoviceanus, Licht., (232.) Titlark. Fort Yuma. 
Helminthophaga celata, Baird, (257.) Orange crowned warbler. Fort Defiance. 
Dendroica nigrescens, Baird, (270.) Black-throated gray warbler. Fort Defiance. 
Dendroica audubonis, Baird, (273.) Audubon’s warbler. Fort Tejon, Fort Yuma, and the 
Colorado. 
Hurindo thalassina, Sw., (311.) Violet-green swallow. Fort Defiance. 
Phainopepla nitens, Sclater, (320.) Black flycatcher. Fort Yuma and the Colorado desert. 
Collyrio excubitoroides, Baird, (327.) White-rumped shrike. Partridge creek. 
Merinus polyglottus, Bore, (344.) Mocking bird. Big Cafion of Colorado. 
