368 



U. S. p. R. R. EXP. AND SURVEYS — ZOOLOGY — GENERAL REPORT. 



under parts being little if at all appreciable. There is, perhaps, a stronger tendency to bars on 

 the upper parts and sides. Whether these features should be considered as establishing a dis- 

 tinct species I am not prepared fully to admit, but adopt Auduboa's name as a provisional one 

 for the western form. 



Audubon compares his T, parhmanni with T. hyemalis. The differences are, however, very 

 great, and the comparison should be made much rather with aedon. 



List of specimens. 



Cat. 



No. 



Sex & 

 I age. 



sun I 



5274 



4734 j 



4737 ! 



5276 ! 



4739 



4740 



4735 



4741 



4738 



4742 



4736 



8211 



4743 

 5846 

 7139 

 7135 

 7136 

 7137 

 5517 

 7138 



Locality. 





Blackfoot country . . . 



do 



Upper Missouri 



do 



Fort Lookout, Neb. . 



Near Council Blutfs. 

 Bald island, Nel) 



Upper Missouri 



do „ 



.... do 



do 



North Platte 



Fort Laramie 



Upper Missouri 



South Flatte 



CharcoEscondido, Mx 



Fort Steilacoom 



do 



do 



Petaluma, Cal 



Sacramento Valley . . . 



When col- 

 lected. 



July 

 July 

 May 

 May 

 July 

 April 

 Apil 

 May 

 May 

 May 

 May 

 April 

 Sept. 



—,1855 

 —,1855 

 11,1856 

 15, 1856 

 —,1856 



29 



25, 1856 

 14, 1856 

 15, 1856 

 15,1856 

 12, 1S56 



36. 1856 



18. 1857 



April 24, 1856 

 July 7, 1856 



May 3,1855 

 May 25,1856 



Whence obtained. 



Lt. Warren. 



do .... 



do .... 



do .... 



do 



.do., 

 .do., 

 do., 

 .do.. 



.do.. 



do 



W. M. Magraw.. 



Lt. Warren 



Lt. Bryan 



Lt. Couch 



Dr. Suckley .... 



do 



do......... 



E. Samuels..,,, 

 Lt. Williamson. . 



Orig'l 

 No. 



193 



76 

 127 

 363 

 380 

 887 



Collected by — 



Dr. Hayden. 



do 



do 



.do., 

 .do., 

 do.. 



.do., 

 .do., 

 .do.. 



, do 



do 



Dr. Cooper . . . , 



Dr. Hayden.... 

 W. S. Wood . . 



Dr. Eleermann. 



Length. 



Stretch 

 of wings 



4.50 

 4.75 

 4.50 



4.87 

 5.12 

 5.00 

 4,37 

 4.75 

 4.25 

 5.00 



4.75 



4.50 



6.50 

 6.87 

 6.00 



6.50 

 6.75 

 6.50 

 6.75 

 6.75 

 6.25 

 6.87 



6.50 



6.00 



Wing. 



2.00 

 2.12 

 2.00 



2,ia 



2.25 

 2 50 

 2.25 

 2.12 

 2.25 

 2.12 



2.00 



2.00 



Eye brown . 



Eye brown . 

 Iris hazel... 



Iris light brown. 

 do 



Iris brown, bill flesh, feet hght 



brown. 

 Eye light brown 



Bill slate, eyes dark brown. 



^TROGLODYTES AMEBIC ANUS, Aud. 



Wood Wren. 



Troglodytes amencanus, Aud. Orn, Biog, II, 1834, 452 : V, 1839, 469 ; pi, 179.— Is. Birds Amer, 11, 1841, 123; pi. 119. 

 Troglodytes sylvestris, Gambel, Pr. A. N. Sc. Ill, 1846, 113, (actually refers to T. pajkmttnni,]thougb quoting Audu- 

 bon as above.) 



Sp. Cii. — Similar in size and color to the T. aedon; the bill shorter, the tail more graduated. Colors throughout much 

 darker ; no light line over the eye, but the sides of the head and neck much like the crown. The lores and ear coverts with 

 the shafts of the feathers scarcely lighter. Length, 4.50 ; wing, 2.00 ; tail, 1.85. 



Hab. — Eastern United States. 



If I am correct in the reference of No. 2951 to this supposed species of Mr. Audubon, it is 

 very similar to T. aedon, but appears to have a shorter and stouter bill. The size and propor- 

 tions are very nearly the same, though given by Audubon as considerably larger. The colors 

 generally are considerably darker, with very little reddish ; most distinct on the rump. There 

 is no light line over the eye ; in fact the sides of the head and neck are almost uniform brown, 

 with their upper parts being slightly relieved only by pale shafts to the ear coverts, and perhaps 

 to the loral feathers. The under parts are considerably darker, the throat and breast almost 

 brownish ash, the middle of the belly only whitish. 



