538 NORTH AMERICAN BIRDS. 



within the broad, continuous black maxillary stripe. Female with the 

 throat wholly white. Hah. Eastern Province North America, south 

 in winter into West Indies, and over whole of Mexico, to Guate- 

 mala ........... var. varivs. 



Crown always red in adult. A nuchal crescent of scarlet in both 



sexes. Red of the throat not confined by the black maxillary stripe, 



which is interrupted by it in the middle, allowing the red to touch the 



white stripe ; a tinge of red on the auriculars. Female always with 



more or less red on lower part of the throat. Hab. Rocky Mountains 



and Middle Province of United States .... var. nuchali s. 



White and Mack stripes on side of head obsolete, as is also the black 



pectoral crescent, caused by being overspread by a continuous red 



tvash extending over whole head, neck, and breast. 



Whole head, neck, and breast red, with the light and dark stripes of 

 the normal pattern only faintly traceable. Sexes similar. Hab. Pacific 

 Province of United States, north to British Columbia . . var. ruber. 



2. S. williamsoni. Back un variegated ; secondaries without bands of 

 white spots. 



Whole crown and upper parts (except lower part of rump and 

 upper tail-coverts, and wing-patch), a stripe on side of head, a broader 

 one on side of the throat, and the whole jugulum and sides of the 

 breast, unbroken glossy-black ; abdomen bright lemon-yellow. Male 

 with a narrow stripe of scarlet on middle of the throat. Female with 

 it white. Young like the adult. Hab. Western Province of United 

 States. 

 B. Wing without a white patch. Markings on sides regularly transverse. 



3. S. thyroideus. Head all round light brown ; abdomen bright lemon- 

 yellow ; rump and upper tail-coverts white. Entire upper surface, with 

 sides, regularly and continuously barred with black and white, in nearly 

 equal amount ; the black bars usually coalesced on the jugulum into a more 

 or less extensive patch. Male with the throat tinged medially with scarlet. 

 Female without any red. Hab. Western Province of United States. 



