192 VERTEBRATES: BIRDS. 



which is six and a half inches long, the wing two and a 

 half inches. 



The Genus Salpinctes comprises the Rock Wren, S. 

 obsoletus, Cab., of the Rocky Mountains, which is five 

 and seven tenths inches long, the wing less than three 

 inches. 



The Genus Thryothorus has the bill about as long as 

 the head, nearly straight to the tip, which is abruptly de- 

 curved. The wings are about equal to the tail, which is 

 arched and nearly even, and the tarsus longer than the 

 middle toe. 



The Great Carolina Wren, T. ludoviciamis, Bonap., of 

 the United States north to Pennsylvania and west to the 

 Missouri, is six inches long, the wing two and six tenths 

 inches, the color reddish brown above, beneath pale yel- 

 lowish-rusty. 



Berlandier's Wren, T. Berlandierii, Couch, of Mexico, 

 closely resembles the preceding, but is smaller. 



Bewick's Wren, T. Bewickii, Bonap., of North America, 

 is five and a half inches long, the wing two and a quarter 

 inches; the color rufous brown above, plumbeous white 

 below, wings and innermost tail-feathers barred with 

 dusky ; the remaining tail-feathers mostly black, marked 

 with white. 



The Genus Cistothorus has the tail much graduated 

 and shorter than the wings, and the feet stout. 



The Long-billed Marsh Wren, C. palustris, Cab., of 

 North America, is five and a half inches long, the wing 

 over two inches ; the upper parts dull reddish brown ; 

 the crown, interscapular region, outer surface of tertials, 

 and tail feathers, almost black ; the under parts and 

 streak over the eye white. This species lives among 

 the rank vegetation growing around inlets to the sea. 

 Here it builds its nest, and lays six or more eggs, of a 

 deep chocolate color. 



