1 8O VERTEBRATES : BIRDS. 



E. Those in this group have the under parts white, 

 back streaked with black, and the wings with white bands. 



The Chestnut-sided Warbler, D. pennsylvanica, Baird, 

 of the United States east of the Missouri, is five inches 

 long, the wing two and a half inches, the crown yellow 

 encircled with white, sides of the head black, enclosing a 

 white patch behind, and sides of the body chestnut. 



The Blue Warbler, D. cczrulea, Baird, of the United 

 States east of the Missouri, is four and a quarter inches 

 long, the wing over two and a half inches, blue above 

 and across the breast, the sides of the crown and body 

 streaked with black. 



The Black Poll Warbler, D. striata, Baird, of North 

 America east of the Missouri, is five and three quarters 

 inches long, the wing three inches, the crown and streaks 

 upon the sides black, the cheeks below the eye white. 



F. Those of this group have the throat uniform yel- 

 low, separated from the belly by a series of pectoral 

 streaks, and the sides are streaked. 



The Pine-Creeping Warbler, D. pinus, Baird, of North 

 America east of the Missouri, is five and a half inches 

 long, and the wing three inches, olive green above, and 

 yellow beneath ; two dull white bands upon the wings. 



The Blue Mountain Warbler, D. montana, Baird, of the 

 Blue Mountains, Virginia, is four and three quarters 

 inches long, olive green above, forehead and under parts 

 yellow. 



The Yellow Warbler, D. cestiva, Baird, of the United 

 States, is five and a quarter inches long, the wing over 

 two and a half inches, the general color yellow, back oliva- 

 ceous, ventral streaks brownish red. 



The Black and Yellow Warbler, D. maculosa, Baird, of 

 the United States east of the Missouri, is five inches 

 long, the wing two and a half inches, the crown blue, 

 rump yellow, sides of the head and back black, spots on 



