ANAS. 



93 



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

 1.45. JEggs 1.84 X 1-34, pale buff. JIab. North America in 

 general, but chiefly east of Eocky Mountains; in winter, whole 

 of West Indies and Middle America, south to Ecuador. 



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

 fP. 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 stao-e of 

 A. discors, but averaging larger (the bill especially-), the plumao-e 

 darker, onl^^ 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 J 5.50-17.00, 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 

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



141. A. cyanoptera Vieill. Cinnamon Teal. 

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

 men, the upper and lateral outlines sti-aight for terminal half (Wing 

 less than 8.00.) (Subgenus Nettion Kaup.) 

 c^ Adult male : 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 uj^per 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 grajnsh dusky, varied by dull buffy 

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



