RIVER DUCKS. 101 



6». Cheeks aud under parts chestnut-rufou8. 141. Cinnamon Teal ( « ad.). 

 «!. Cheeks finely streaked with blackish. 

 c». Under parts whitish, sometimes washed with brownish, streaked or 



spotted with blackish 140. Bloe-winged Teal 9 . 



c". Under parts heavily washed with chestnut-ruibus aud mottled with 



black * 141. Cinnamon Teal 9 , 



[I Wing over 8-50. 

 A. Belly white or grayish white, not conspicuously streaked or spotted. 



a. Whole head shining dark green 132, Mallaku ( i ad.). 



b. Center of head white or whitish, a large streak behind the eye, 



137. Baldpate ( <5 ad.). 

 ♦ c. Throat white, crown green or grayish green, tips of primaries greenish. 



144. Wood Duck. 

 d. Throat blackish, center of crown buffy, rest of head rufous. 



136. Wilpgeon ( i ad.). 

 «. Throat and sides of head olive-brown, darker on the crown. 



143. Pintail ( 9 ad.). 

 /■. Throat, crown, and sides of head more or less finely streaked with 

 blackish. 



yi. Wing-eoverts with more or less chestnut .... 135. Gadwall. 

 ff^. No chestnut in wing-coverta. 

 g^. Axillars * and sides barred with black .... 143. Pintail 9. 

 g'. Axillars white or speckled with black, sides plain brownish. 



137. Baldpate 9 . 

 g*. Axillars white, sides thickly spotted or barred with black. 



135. Gadwall 9 . 

 £. Under parts conspicuously mottled, spotted, or streaked, or feathers 

 margined with chestnut-rufous. 



a. With white in wing-coverts. 



aK Lesser wing-coverts ashy blue 142. Shoveler 9 . 



Ji. Lesser wing-coverts brownish gray, bordered with white or tipped 



with black. 



b'. Speculum t purple . 132. Mallakd 9. 



bK Speculum gray and white 135. Gadwall 9 - 



b. No white in wing-coverts. 



a. Throat fulvous or buffy without streaks . . . 134. Floeida Duok. 



b. Throat finely streaked with black ...... 133. Black Duck. 



0. Belly chestnut 142. Shovelee i . 



132. Anas boschaiS Linn. Mallaed (see Fig. 17, a). Ad. i . — 

 Whole head and throat glossy greenish or bluish black; a white ring around 

 the neck ; breast rich chestnut ; belly grayish white, finely marked with wavy 

 black lines ; under tail-eoverts black ; upper back dark grayish brown ; rump 

 and upper tail-coverts black ; longer upper tail-eoverts recurved ; speculum 

 rich purple, bordered at the base and tip by narrow bands of black and white. 

 Ad. 9 . — Top and sides of head streaked with fuscous and butfy ; back fuscous, 



* See Fig. 64. + A colored patch in the wing. 



