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LAMELLIROSTRAL SWIMMERS — ANSERES. 



Hab. Northern part of the northern hemisphere ; in America, south, casually, in winter, to 

 New Jersey and the Great Lakes. 



S. spectahilis. 



Sp. Char. Adult male : Feathers bordering the base of the maxilla all round, a spot beneath 

 and behind the eye, and a large V-shaped mark on the throat, black ; entire top of the head and 



upper part of the nape delicate pearl- 

 gray, or glaucous-blue, growing gradually 

 deeper behind, where sometimes bordered 

 by an indistinct blackish line ; upper and 

 anterior portion of the cheeks, below the 

 eye and immediately behind the black 

 bordering the side of the bill, and an 

 oblique patch on the auricular region 

 delicate sea-green, the auricular patch 

 abruptly defined anteriorly, but above 

 gradually fading into white, along the 

 edge of the bluish-gray of the occiput and 

 nape ; remainder of the head, neck, mid- 

 dle of the back, wing-coverts (except 

 greater coverts and exterior border of 

 lesser coverts), lining of the wing, and a 

 patch on each side of the rump white ; 

 breast and jugulum deep cream j' buff. 

 Remainder of the plumage dull black, 

 the falcate tertials with a narrow and 

 rather indistinct central stripe of dull 

 browidsh. " Bill flesh-colored, the sides 

 of the ujjper mandible and soft frontal 

 lobes bright orange ; iris bright yellow ; 

 feet dull orange, the webs dusky, the 

 claws brownish black" (Audubon). 

 Adult female, in summer : Pale fulvous, 

 varied with black, the latter occupying 

 the central portion of the feathers on the 

 dorsal region, forming streaks on the head 

 and neck, and bars on the jugulum, sides, 

 flanks, and upper tail-coverts ; abdomen 

 and anal region nearly plain grayish 



Male. 



