BUCKS, GEESE AND SAVANS OF NORTH AMERICA. 



41 



Subfamily ANATIN^. River Due 

 Ducks having hind toe without membraneous lobe 



or flap. 



Genus ANAS Linn. 



(Female.) 



(Male.) 



ANAS BOSCHAS Linn. 



-^ Mallard. 



CrREEN Head, Ex«lish Duck. 



Adult male: Head and neck, dark green with a white ring on the neck; under parts, 

 whitish or ashj' white; breast, rich chestnut ijrown; under tail coverts, blaolv ; upper tail 

 coverts are also blacl? with central feathers elongated and curved upwards ; speculum, pur. 

 pie, bordered with black and white; feet, orange red; bill, yellowisli olive. 



