98 NORTH AMERICAN BIRDS. 



young : Above graj-ish olive, with a dull white stripe along each side of 

 back, a white space on wing, and a yLJlowish white superciliary stripe; 

 below graj-ish white tinged with sulphur-j-ellow (this deeper in j-ounger 

 individuals) ; a brown stripe behind each eye, and an indistinct spot of 

 same over ears. Eggs 2.21 X "i-Al, varj-ing from pale brownish buff to 

 pale grayish green. Hub. Northern hemisphere in general ; in North 

 America, breeding from northern United States northward, and winter- 

 ing south to Cuba and Panama 143. D. acuta (Linn.). Pintail. 



a'. Lower half of head, with upper fore-neck, plain white; tail creamy buff, fading 

 into white at tip; lower parts buff, marked everywhere with roundish spots 

 of black, largest on sides; secondaries very broadly tipped with buff; basal 

 half of bill, on sides, pale-colored (rose-red in life) ; sexes alike. (Subgenus 

 Foecilonetta Eyton.') 



D. bahamensis (Lixx). Bahama Pintail.* 



Genus AIX Boie. (Page 85, pi. XXIII., fig. 5.) 



Species. 



Common Characters. — Adult males with the plumage strikingly variegated 

 with boldly contrasted and brilliant colors; head varied with rich metallic green 

 and purple and pure white; chest rich purplish chestnut; sides of breast crossed 

 by a broad bar of pure white immediately followed by one of velvety black ; sides 

 and flanks buff)-, delicatelj' waved with black, the tips of the broad outermost 

 feathers broadly barred with purest white and most intense black; belly white; 

 upper parts varied with velvety black and various metallic hues, the outer webs 

 of the primaries hoarj-, passing into white at tips. Adult females with head plum- 

 beous or brownish gray, varied with white; chest brownish, spotted with white; 

 upper parts without black, but with much metallic purple. 



rt'. Feathering at base of upper mandible extending much farther forward below 



than above, the upper basal portion of the mandil)le forming a very deep 



angle between the feathering of the forehead and that of the lores; depth of 



bill at base much greater than its width ; feathers on sides of head and neck 



short and velvety; innermost tertial of normal form ; tail half as long as the 



■wing, graduated, the feathers verj- broad, and extending far bej-ond the 



coverts. (Subgenus Aix^ 



Adult male : Head metallic green, purple, and violet relieved by a pure 



white line extending backward from the angle of the upper mandible 



along each side of the crown and upper border of the crest ; another 



from behind the 03*0 backward along the lower edge of the crest, and 



two much broader transverse bars crossing the cheeks and side of neck, 



respectively, and confluent with a white throat-patch ; upper parts chiefly 



velvety black, varied with metallic tints of bronze, purple, blue, and 



• Poeciloaetla EvTON, Monog. Aniit. IS.IS, 116. Typo, Allan bnhamcntia Lixx. 



» Anat bahameiui* LlKN., S. N. cd. 10, i. 1758, 221. Sajlla bahamcnsit GnAV, Ccn. B. iii. 1849, 615. 



