CHARACTERS OF SIURUS N^VIUS 301 



Tardus motacilla, Bp. Journ. Phila. Acad. iv. 1824, 35 (adopts Vieillot'a name for this 

 species). 



Seinrus tenulrostris, Sw. Phil. Mag. i. 1827, 369. 



Scinrus tenulrostris, <?«?«&. Pr. Phila. Acad. i. 1843, 261 (Colorado Kiver). 



Sciurus sulfurascens, D'Orh. Ois. Cuba, 1839, 57, pi. 6. 



Seiurus sulphurascens, Bp. CA. i. 1850, 306. 



Enicocicbla sulpburasrens, '-Gray". 



Henicocicbla sulpburascens, Oundl. J. f. 0. 1855, 471 (Cnha.). —Gundl. J. f. 0. 1861, 407 

 (Cuba). 



Anthus Iberminieri, ILess. Eov. Zool. 1839, 101. 



Seiurus gossii, Bp. C A. i. 1850, 306 (.Jamaica). 



Fauvette tacbet^e de la Louisiane, Buff. " Hist. Nat. Ois. v. 161 " ; PE. 752, f. l (basis of 

 Boddaert's and Gmelia'a names). 



New York Warbler, Penn. AZ. ii. 1785, 409, n. 308.— Lath. Syn. ii. pt. ii. 1783, 436, n. 29. 



Fanrette brune, V. OAS. 1. c 



Fauyette plpl, V. 1. c. 1817 and 1823. 



Grlve de roulsseaux ou Hochequeue, Le Maine, Ois. Canad. 1861, 173. 



Bessy Klck'Up, River Pink, Oosse, B. Jam. 1847, 151. 



Mew York or Aquatic Thrush, Water Thrush, Aquatic Wood-wagtall, Aquatic Ac- 

 centor, Small-billed Water Thrush, Authors. 



Hab. — North America at large. Mexico, West Indies, Central America and 

 mach of South America. Winters from Florida and the Gulf coast south- 

 ward. Breeds in the greater part, if not the whole, of its North American 

 range. 



Ch. sp. — <J 9 Olwaceofuscus, alls cauddque concoloribus ; infrei 

 albido-sulphurascens^ undique olivaceo-fusco Hrlatus; striga super- 

 ciliari hrunneoalhido ; rostro pedibusque ohscuris. 



2 (? : Uniform dark olive-brown, the wings and tail pimilar, unmarked; 

 below very pale sulphury -yellow, everywhere, except perhaps on the middle 

 of the belly, thickly speckled or streaked with dark olive-brown, the mark- 

 ings smallest on the throat, largest on the eidep. A long dull whitish super- 

 ciliary line. Bill and ftet dark. Length, bi-6 ; extent, 8^-9^ ; wing, 2|-3 ; 

 tail, 2J ; bill not over i along the culmen . 



The sexes do not differ appreciably, and the youngest birds examined are 

 not notably different from the adult; but I have not seen the newly-fledged 

 bird. The shade of the upper parts varies from a decidedly olivaceous-brown 

 to a purer, darker bistre-browu, and that of the under parts from sulphur- 

 yellow to nearly white; but it is never of the bufify-white of >S. motacilla. 

 The streaking varies in amount and intensity, but always has the sharp dis- 

 tinct character of the species in comparison with iS. motacilla, and is rarely 

 if ever absent from the throat. I have seen no bill over half an iucli long, 

 and this member lacks the peculiar shape, as well as size, characteristic of 

 S. motacilla. 



The earliest feathering has only lately beeu described, and it proves to be 

 streaky, as might have been anticipated. Mr. Ridgway speaks of a very 

 young bird as being sooty-blackish, with each feather of the upper parts 

 with terminal bar of ochraceous; the wing-coverts tipped with the same, 

 forming two bars; the streaks below as in the adult, but broader and not so 

 sharply defined. 



It should be noted that Motacilla noveloracensis of Gm., the name currently 



