LIST OF BIRDS 
COLLECTED BETWEEN 
Sati Francisco and Fort Yuma, California, during the survey of railroad route from the Mississippi 
to the Pacific ocean, under the command of Lieutenant R. S. Williamson, Top. Engs. 
Specimens. 
Pandion carolinensis. 1 
Hypotriorchis columbarius... 1 
Tinnunculus sparverius... 2 
Buteo insignatus. 1 
Buteo elegans... 2 
Buteo borealis... 1 
Arcbibuteo ferrugineus. 1 
Elanus leucurus. 1 
Accipiter cooperi. 2 
Accipiter fuscus.... 1 
Circus budsonius . 1 
Athene cunicularia. 1 
Strix pratincola. . 2 
Brachyotus cassini. 1 
Bubo virginianus. 1 
Scops asio. 1 
Chordeiles popetue. 2 
Progne purpurea. 1 
Hirundo rufa .. 2 
Hirundo lunifrons. 2 
Hirundo thalassina.. 1 
Cotyle riparia. 1 
Cotyle serripennis. 1 
Tyrannus verticalis. 2 
Tyrannula sayii. 2 
Tyrannula cinerascens. 1 
Tyrannula nigricans. 2 
Tyrannula richardsonii ?. 2 
Pyrocephalus rubineus. 1 
Ptilogonys nitens.*.. 2 
Specimens. 
Polioptila melanura. 2 
Myiodioctes pusillus. 1 
Dendroica audubonii.. 2 
Dendroica aestiva.. 2 
Dendroica nigrescens. 1 
Trichas delafieldii. 1 
Helminthopbaga celata. 2 
Certhia americana... 1 
Troglodytes obsoletus. 2 
Troglodytes bewickii.. 2 
Troglodytes aedon. 1 
Troglodytes palustris. 1 
Campylorhynchus brunneicapillus... 2 
Lophophanes inornatus. 2 
Parus rufescens. 2 
Parus montanus .. 2 
Psaltria minima. 1 
Chamaea fasciata. 2 
Sialia mexicana .. 2 
Cinclus americanus. 1 
Mimus polyglottus. 2 
Mimus montanus. 2 
Harporhynchus redivivus. 1 
Turdus migratorius. 2 
Turdus naevius. 2 
Turdus nanus. 1 
Antbus ludovicianus.... 1 
Otocoris rufa. 1 
Embernagra cblorura. 1 
Chondestes grammaca. 2 
