38 ANSERES : Lamellirostral Swimmers 



MALLARD 



(132. Anas platyrhynchos) 20-24 in. 



Male: Head and upper neck rich metallic green (hence the 

 popular name " Green-head"); a pure white collar; lower neck 

 and chest deep chestnut; much gray on back and wings, and 

 below; speculum purple, black-and-white-edged. Several upper 

 tail-coverts curled upward into a ring. 



Female: Mostly tawny, streaked and splashed with brown 

 and dusky. 



The parent stock of the common domestic Duck. 



GADWALL 



(135. Chaulelasmus streperus) 20 in. 



Male: Wing-coverts extensively chestnut; behind this a black 

 patch, then white, a distinctive combination; back and sides 

 finely marked with wavy bars on whitish; chest heavily scale- 

 marked; head and neck with fine dusky marks on buffy ground. 



Female: Head like male; breast and sides dusky-spotted on 

 ochraceous. A rather dull, plain bird. 



BALDPATE 



(137. Mareca americana) 20-23 in. 



Male: Crown white; a wide metallic green band from eye to 

 eye across nape; rest of head and neck buffy, finely dusky- 

 specked; chest wine-colored; back light brown, with fine wavy 

 lines of black; wing-coverts white; speculum green. 



Female: Head and neck wholly speckled; back and chest 

 dusky brown, with buff or gray edgings; wing gray, white, and 

 black. 



EUROPEAN WIDGEON See Appendix. 



(136. Mareca penelope) 18-20 in. 



