BIRDS — SYLVICOLIDAE — DENDEOICA AUDUBONII. 



273 



List of specimens. 



Locality. 



Carlisle, Pa. 

 do.... 



-do. 



.do. 



do 



Wasliington, D. C 



Rockport, Ohio 



Indian Key, Fla 



Mouth Vermilion riv. 

 do 



Mouth Big Sioux 



Mouth Platte river 



Medicine creek, Mo.- 

 Indianola 



Fort Leavenworth 



FortSteilacoom,W. T. 



When collected 



May 4, 1844 

 Oct. 22, 1842 

 April 30, 1844 

 May 5, 1816 

 April 30, 1845 



Mar. 20, 1857 

 May 5, 1856 



May 3, 1856 

 April 20, 185G 

 Oct. 8, 1856 

 Feb. 26, 1856 

 Dec. 20, 1854 

 May 1, 1856 



Whence obtained. 



S. F. Baird. 

 do... 



-do. 



.do. 



do ... 



J. C. McSnire.. 

 J P. Kirtland.. 

 G. TrVurdemann. 

 Lieut. Warren - 

 do 



-do. 

 -do. 



.do. 



Capt. Pope 



Lieut. Couch. 

 Dr. Suckley.. 



Orig. 

 No. 



26 



16 



351 



Collected by- 



Dr. Hayden. 

 do 



-do- 

 .do. 

 .do. 



Length. 



Stretch . Wing 

 of wings. 



5.66 

 5.25 

 6.00 

 5.08 

 5.08 



4.00 



5.75 



5.50 

 5.00 



G. 00 



9.00 

 8.83 

 9.33 

 8.83 

 8.25 



8.87 

 8.50 



9.00 



9.00 3.00 



3.00 

 2.75 

 3.00 

 2.83 

 2. 56 



6.62 2.25 



3.00 

 2.50 



DENDROICA AUDUBONII, Baird. 



Audnbon's Watbler. 



Sylvia muhibonii, Townsend, J. A, N. So. Ph. VII, n, 1837.— Ib. Narrative, 1839, 342.— Aud. Orn. Biog. V, 1839, 



52; pi. 395. 

 Sylvicola audubonii, BoNAp. List, 1838.— Aud. Syn. 1839, 52.— Ib. Birds Amer. II, 1841, 2G ; pi. 77. 



Sp. Cii. — Above bluish ash, streaked with black, most marked on the middle of the back; on head and neck bluish ash. 

 Middle of crown, rump, chin, and throat, and a patch on tlie side of the breast, gamboge yellow. Space beneath and anterior 

 to the eyes, fore part of breast and sides, black; this color extending behind on the sides in streaks. Middle of belly, under 

 tail coverts, a portion of upper and lower eyelids, and a broad band on the wings, with a spot on each of the four or five exte- 

 rior tail feathers, white; rest of tail feathers black. Female brown above; the other markings less conspicuous and less 

 black. Length, 5.25; wings, 3.20; tail, 2.25. 



Hab. — Pacific coast of United States to central Rocky mountains. South to Mexico. 



This species is very closely allied to D. coronata, the upper parts being almost precisely 

 similar. They may be most readily distinguished, however, by the yellow chin and throat of 

 the one, instead of the white of the other. In D. auduhonii, the black of the side of the head 

 is confined to the lores, and a suffusion around the eye, especially anteriorly, instead of the 

 conspicuous auricular patch ; the only white, too, is the spot on either lid, the interrupted 

 superciliary stripe being wanting. The black on the breast is more uniform and continuous, 

 and there is one broad white patch on the wing Ibrmed by white margins to the greater coverts, 

 as well as the tips to these and the lesser ones : in the other species there are two. The white 

 on the tail is more extended, the white edging to the quills is more conspicuous, and the wings 

 are longer. The tail is much blacker. 



In a specimen from Janos, Mexico, (7651,) the black of the breast is anteriorly much shaded 

 with the color of the back, and the interscapular feathers are edged with yellow. I am, how- 

 ever, unable to detect any other differences. 



