BIKDS-SYLVICOLIDAE—GEOTHLYPIS PHILADELPHIA. 
243 
GEOTHLYPIS YELATUS, Cab. 
Gray-headed Warbler. 
Sylvia velata, Vieillot, Ois. Am. Sept. II, 1807, 22 ; pi. lxxiv. 
Trichas velata, Swainson, Class. Birds, II, 1837, 247.— Nuttali., Man. I, 2d ed. 1840, 458. 
Gcothlypis velata, Cab. Mas. Hein. 1850, 16. 
Sylvia cucullata, Latham, Ind. Ora. II, 1790, 528. (Not of Wilson.) 
“ Sylvia caniicapilla, Pit. Maxim.” r 
“ Tanagra caniicapilla, Swainson, Zool, Ill. Ill, 174.” 
Sylvia delafieldii, Aud. Ora. Biog. V, 1839, 307. 
Trichas delafieldii, Aud. Syn. 1839, 65.— Ib. Birds Am. II, 1841, 81 ; pi. 103. 
Trichas caniicephala, Lesson, Rev. Zool. Ill, 1840, 13. 
Sp. Ch.—U pper parts and sides dark olive green. Crown ash color. A narrow frontal band passing backwards on the cheeks 
and ear coverts, and extending a little above the eye. Beneath bright yellow. Length, 4.75 ; wing, 2.55 ; tail, 2.40. 
Ilah .—-West Indies and South America. Oregon? 
It is scarcely certain that tbe present species really belongs to the fauna of the United States. 
Its occurrence in the West Indies (where it really belongs) and in Oregon, without being 
found in any intermediate locality, would seem very improbable. Mr. Audubon received bis 
specimen (No. 2905 of tbe accompanying list) from Mr. Townsend who probably procured it 
somewhere else than in the assigned locality. 1 
This species is readily distinguishable from the Geothlypis trichas by its larger size, bright 
yellow of the entire under parts, (without any brown,) and the ashy crown, without any lighter 
space separating it from the black of the forehead. The tail is broad and much graduated ; 
the lateral feathers .45 of an inch the shortest. The wings are much rounded ; the first quill 
shorter than the sixth. 
List of specimens. 
Catal. No. 
Sex. 
Locality. 
Whence obtained. 
Collected by— 
2905 
Oregon ?___... 
J. J. Audubon . ...___....... 
2367 
A 
Trinidad._._,_„ „ _ 
- - - - do___ 
John Cassin__ 
562 
Mexico ?__ _____ _ ___ 
_do........._.........__ 
John G. Bell____....... 
1 Nuttali states that Townsend’s specimen was taken near Fort Vancouver, O. T., not in California, as given by Audubon. 
GEOTHLYPIS PHILADELPHIA, Baird. 
Mourning Warbler. 
Sylvia Philadelphia, Wilson, Am. Orn. II, 1810, 101 ; pi. xiv.— Audubon, Orn. Biog. V, 1839, 78, (not figured.)— 
Nuttall, Man. I, 1832, 404. 
Trichas Philadelphia , Jard. Wilson, 1832.— Rich. List, 1837.— Bonaf. List, 1838.— Audubon, Synopsis, 1839, 64.— 
Ib. 'Birds Am. II, 1841, 76; pi. 101.— Reinhardt, Vidensk. Meddel. for 1853, 1854, 73. 
(Greenland.) 
Sp. Cii.—W ings but little longer than the tail, reaching but little beyond its base. Head and neck all round with throat and 
fore part of breast ash gray, paler beneath. The feathers of the chin, throat, and fore breast in reality black, but with narrow 
ashy margins, more or less concealing the black, ex@ept on the breast. Lores and region round the eye dusky, without any 
trace of a pale ring. Upper parts and sides of the body clear olive green ; the under parts bright yellow. Tail feathers 
uniform olive ; first primary, with the outer half of the outer web, nearly white. Female with the gray of the crown glossed 
with olive ; the chin and throat paler centrally, and tinged with fulvous ; a dull whitish ring round the eye. Length, 5.50 
inches ; wing, 2.45 ; tail, 2.25. 
1 lab .—Eastern .North America, as far west as Independence Mo. Greenland, Reinhardt. 
