LIST AND DESCRIPTION 127 



674. OVEN-BIRD (Seiurus aurocapillus.) 



A summer migrant and occasional resident. Somewhat 

 larger than the English Sparrow; but very different in form. 

 Olive green above, the white under parts heavily streaked with 

 black on throat and sides. Two black stripes on the crown in- 

 close a brownish, or golden patch, from which the bird has been 

 called the "Golden-crowned Wagtail Warbler". The Oven-bird 

 is large for a Warbler, and strictly a ground bird, though a bird 

 of the woods. When you come upon them they walk grace- 

 fully from you like diminutive Bantam Cocks. They are most 

 frequently seen in migration, though some nest in the State, 

 which is in the western edge of their breeding range. They are 

 named from their oven-like nest. 



675a. GRINNELL'S WATER-THRUSH (Seiurus noveboracensif 

 notabilis.) 



A common migrant. This bird, as the name indicates, 

 looks more like a Thrush than a Warbler. It is found along 

 streams, and may easily be recognized from its olive color, heav- 

 ily streaked breast, yellowish line over eye, and teetering tail. 



679. MOURNING WARBLER (Oporornis Philadelphia.) 



A rare migrant in eastern South Dakota. Olive green, 

 the bluish slate of head and neck darkening from throat to lower 

 breast, where it meets the yellow belly. 



680. MACGILLIVRAY'S WARBLER (Oporornis tolmiei.) 



"A summer resident of southwestern South Dakota" 

 (Henshaw). Scarcely distinguishable from the Mourning 

 Warbler but for the white eye ring above and below the eyes. 

 Its favorite habitat is in bushes along streams and in moist 

 places. 



68 la. WESTERN YELLOW THROAT (Geothlypis trichas occidentalis.) 



A summer resident. Upper parts rich olive green ; under 

 parts bright yellow. The male wears a black mask across the 

 forehead which falls obliquely upon the checks, including the 

 eyes. One wonders if a little bird bandit is challenging one's 

 right to. intrude in his neighborhood as curiosity brings him to 

 the top of bush or weed. The Yellowthroat's favorite haunt is 



