DUCKS. Family Anatidse 



Long. Very slender; brown head; white neck, black line LENGTH 

 above; spike tail. . 143. PINTAIL 26-30 



Large. 



A. With much black. 



a. Black head and neck. 



1. Short crest; white below. 129. MERGANSER 24 



2. Long crest; rusty breast-band, black-streaked. 



130. RED-BREASTED MERGANSER 22 



b. Wholly black except 



1. White wing-spot. 



165a. DIXON WHITE-WINGED SCOTER 22 



2. White forehead and nape; bill grotesque. 



166. SURF SCOTER 20 



c. Fore parts black. 



1. Back gray; "Little Blue-bill." 



149. LESSER SCAUP DUCK 17 



2. Back black; distinctive bill pattern. 



150. RING-NECKED DUCK 17 



B. Head chestnut; chest and shoulders black. 



1. Back gray 146. REDHEAD 20 



2. Back and belly whitish; bill long (cf. 146). 



147. CANVAS-BACK 21-23 



C. Head and neck dark green. 



1. Shoulders and chest white; breast and belly 

 rufous; bill distinctive 142. SHOVELLER 20 



2. White collar; back dark; breast chestnut; belly 

 whitish 132. MALLARD 20-24 



D. Mostly grayish brown mixed. 



1. Wings extensively chestnut, black, and white. 



135. GADWALL 20 



2. Crown white; extensive white on wing. 



137. BALDPATE 20-23 

 Small 

 A. Black and white; white patch in crest. 



153. BUFFLE-HEAD 14 



