. Review of American birds in the Museum of the Smithsonian Institution: pt. 1 . Birds. VIREOSYLVIA. 343 Smith- Collec- Sex When Collected. BOaUlQ No. tor's No. nnd Age. Locality. Received from Collected by 1,0] 6 rf Carlisle, Fa. May 24, '43. S. r. Baird. 1,017 V " '• " 10,115 rf WashiugtOQ. J. C. M'Guire. 29,275 784 rf " May S, '60. E. Cones. 19, 93 rf Fort Simpeoa. May 22, '60. B. E. Boss. 27, Selkirk Settlement. Gov. Mactavish. 4,729 rf Missouri Kiver. May 9, '57. Lt. Warren. Dr. Hayden. 6,305 V Fort Lookout. June 15, '56. ?• " 35,405 1,905 Evauston, 111. Chicag
. Review of American birds in the Museum of the Smithsonian Institution: pt. 1 . Birds. VIREOSYLVIA. 343 Smith- Collec- Sex When Collected. BOaUlQ No. tor's No. nnd Age. Locality. Received from Collected by 1,0] 6 rf Carlisle, Fa. May 24, '43. S. r. Baird. 1,017 V " '• " 10,115 rf WashiugtOQ. J. C. M'Guire. 29,275 784 rf " May S, '60. E. Cones. 19, 93 rf Fort Simpeoa. May 22, '60. B. E. Boss. 27, Selkirk Settlement. Gov. Mactavish. 4,729 rf Missouri Kiver. May 9, '57. Lt. Warren. Dr. Hayden. 6,305 V Fort Lookout. June 15, '56. ?• " 35,405 1,905 Evauston, 111. Chicago Acad, F. J. Huse. 25,240 " Cairo, 111. J. K. 12891 Vireosylvia swai-nsoni. (California.) TireosyiTia sivainsoni. Vireo swainsoni, Baied, Birds N. Am. 1858, 336 (Pacific coast). Vireo hartramii, Swaikson, V. B. A. II, 1831, 235 (in part; spec, from I Columbia River ?). Hab. United States, from Rocky Mountains to Pacific coast. (No. 5,321, % .) Similar to V. gilva, but smaller; colors paler. Bill more depressed. Upper mandible almost black. Second quill much shorter than 6th. (No. 5,521,^ .) Total length, ; wing, ; tail, ; difference between 10th quill and longest, .58 ; exposed por- tion of 1st primary, .58, of 2d, , of longest (measured from exposed base of 1st pri- mary), ; length of bill from forehead, .56, from nostril, .29, along gape, .65 ; depth of bill, .13 ; tarsus, .70 ; middle toe and claw, .56 ; hind toe and claw, .43. In the article on Vireo gilvus, in the Pacific R. R. Report (Birds N. America), I pointed out certain differences between western and eastern specimens, and applied the provisional name of V. swainsoni to the former. An examination of many additional specimens since that time has only tended to confirm the impression of the existence of two species, the differences noted, though apparently slight, being constant and readily appreciable. In the western bird (V. swainsoni) the bill is darker in color, much smalle
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectbirds, bookyear1864
