ZOOLOGY. 177 



Sub-Family SYLVICOLINAE. T h e Wood Warblers. 



GEOTHLYPIS TRICHAS, Cabanis. 



Maryland Yellow-throat. 



Turdus trichat, LINN. Syst. Nat. I, 1766, 293. GMELIN, Syst. Nat. I, 1788. 



Sylvia trichas, LATHAM, Ind. Orn. II, 1790. VIEILLOT, Ois. Am. Sep. II, 1807, 28; pi. xxviii & xxix. AUD. Orn. 



Biog. I, 1832, 120; V. 1838, 463, pi. 23 & 240. 



Geothlypis trichas. CABANIS, Mus. Hein. 1850, 16. BAIRD, Gen. Rep. Birds, p. 241. 

 Sylvia marilandica, WILSON, Am. Orn. I, 1808, 88; pi. vi, f. 1. 



Trichas marilandica, BON. List, 1838. IB. Consp. 1850, 310. AUD. Syn. 1839, 65. IB. Orn. Biog. II, 1841, 78; pi. 102. 

 Sylvia roscoe, AUD. Orn. Biog. I, 1832, 124; pi. 24. (Young male.) 

 Trichas roscoe, NUTTAL. Man. I, 2d ed. 1840, 457. 



SP. CH. Upper parts olive green, tinged with brown towards the middle of the crown; chin, throat, and breast as far as the 

 middle of the body, with the under tail coverts bright yellow. Belly dull whitish buff. Sides of body strongly tinged with light 

 olive brown; under coverts glossed with the same. A band of black on the forehead, (about .20 of an inch wide in the middle,) 

 passing backwards so as to cover the cheek and ear coverts, and extending a little above the eye; this band bordered behind 

 by a suffusion of hoary ash, forming a distinct line above the eye, and widening behind the ear coverts into a larger patch, with 

 a yellow tinge. In winter dress, and in the female, without the black mask, the forehead tinged with brown, the yellow of the 

 throat less extended, the eyelids whitish, and an indistinct superciliary line yellowish. Length of male, 4.80 to 5.50; extent, 

 6.75; wing, 2.40; tail, 2.20. Bill black, iris brown, feet pale brown. 



Hub. North America from Atlantic to Pacihc. 



The Maryland yellow-throat is very common in the Territory during summer, preferring, as 

 usual, the bushes along brooks and swamps. I observed its arrival about the first of April, and 

 it remains until September. C. 



I have obtained several specimens of this bird at Fort Steilacoom, in the neighborhood of 

 which they are always summer residents, but not in such numbers as the next species. S. 



GEOTHLYPIS MACGILLIVRAYI, Baird. 



Macgillivray s Warbler. 



Sylvia macgillivrayi, AUDUBON, Orn. Bio. V, 1839, 75; pi. 399. (Sylvia Philadelphia on plate.) 



Trichas macgillivrayi, AUD. Syn. 1839, 64. IB. Birds Amer. II, 1841, 74; pL 100. 



Sylvia tolmieei, TOWNSEND, J. A. N. Sc. VIII, 1839, 149, 159. (Read April, but the volume really not published 



till 1840.) 



Sylvia tolmiei, TOWNSEND, Narrative, 1839, 343. 

 Trichas tolmiaei, NUTTALL, Man. I, 2d ed., 1840, 460. 

 Geothlypis matgillivrayi, BAIRD, Gen. Rep. p. 244. 



SP. CH. Head and neck all round, throat, and fore part of the breast, dark ash color; a narrow frontlet, loral region and 

 space round the eye (scarcely complete behind) black. The eyelids above and below the eye (not in a continuous ring) white. 

 The feathers of the chin, throat, and fore breast really black, with ashy gray tips, more or less concealing the black. Rest 

 of upper parts dark olive green, (sides under the wings paler;) of lower, bright yellow. Female with the throat paler and 

 without any black. Length of male, 5 to 5.75 inches; extent, 7.25 to 8; wing, 2.45; tail, 2.45; iris and feet brown, bill black 

 above, white below. 



Hob. Pacific coast of North America, south to Gulf of California and across to Monterey, Mexico. In Rocky mountains 

 to Fort Laramie. (Dr. COOPER.) 



This western yellow-throat is very common about Puget Sound, and, unlike the last, frequents 

 the underbrush in the dry woods, keeping commonly close to the ground, but occasionally 

 singing from a low tree a song somewhat similar to that of the above species. Its nest I 

 found built in a small bush not more than a foot above the ground, and very loosely built of 

 straws with but little soft lining. The eggs, laid in June, were white. The young resemble 

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