ANAS. 93 



7.00-7.50, culmen 1.40-1.65, tarsus 1.20-1.30, middle toe 1.40- 

 1.45. Eggs 1.84 X 1.34, pale buff. Hob. North America in 

 general, but chiefly east of Eoeky Mountains ; in winter -whole 

 of West Indies and Middle America, south to Ecuador. 



140. A. discors Linn. Blue-winged Teal. 

 d*. Culmen usually more than 1.65. Adult male: Head, neck and 

 lower parts uniform rich glossy chestnut, the top of head 

 blackish, the belly duller (sometimes blackish). Adult female 

 (and male in breeding season) : Similar to corresponding stage of 

 A. discors, but averaging larger (the bill especially), the plumage 

 darker, only the upper throat (sometimes chin only) unstreaked, 

 the belly usually heavily spotted and the breast deeply tinged 

 with light brown. Young : Similar to adult female, but mark- 

 ings of lower parts much narrower, streak-like. Downy young : 

 Above dark olivaceous, varied by a spot of deep greenish buff 

 on each side of back (behind wings), and a spot of clearer yel- 

 lowish on each side of rump, at base of tail ; top of head and 

 hind-neck similar to back, but darker; forehead, broad super- 

 ciliary stripe, sides of head and neck, and lower parts generally, 

 deep buff-yellow, the sides of the head marked with a distinct 

 narrow stripe of dark brown. Length about 15.50-17.00, wing 

 7.20-7.75, culmen 1.65-1.85, tarsus 1.25-1.35, middle toe 1.40- 

 1.50. Eggs 1.87 X 1-41, pale buff. Hab. Western America, 

 from the Columbia Eiver to Chili, Argentine Eepublic, and 

 Falkland Islands ; east, casually or irregularly, to Mississippi 

 Valley (Louisiana, Illinois, Nebraska, etc.). 



141. A. cyanoptera Vieill. Cinnamon Teal. 

 b\ Width of upper mandible near tip less than one-third the length of the cul- 

 men, the upper and lateral outlines straight for terminal half. (Wing 

 less than 8.00.) (Subgenus Nettion Kaup.) 



A broad white bar across side of breast ; inner webs of 

 outermost scapulars vermiculated with dusky and whitish, the 

 outer webs with a longitudinal spot of black, bordered internally 

 by a white line ; head and upper neck chestnut-rufous, varied by 

 a broad patch of bright metallic green from eye backward, this 

 bordered beneath by a line of pale buffy or whitish ; a similar line 

 on each side of forehead, continued backward, less distinctly, along 

 upper edge of the green patch; a short tuft or "mane" of bluish 

 black on upper hind-neck ; chin and upper throat dull black ; lower 

 neck, upper back, scapulars, sides, and flanks, delicately waved 

 with black and white ; speculum bright metallic green, the lower 

 feathers black, tipped with white ; lower tail-coverts black medially, 

 with a cream-colored patch on each side. Adult female : Wing much 

 as in adult male ; upper parts grayish dusky, varied by dull buffy 

 edgings and bars ; head, neck, and lower parts brownish white, 



