NATATORES. 



339 



this Goose is limited to the single Island of Hawaii, rarely visiting any 

 others of the group, though several are in sight. It bears confinement 

 well, is hardy, and soon becomes domesticated. Its voice resembles 

 that of the Snow Goose [Anser hyperhoreus)." 



Dr. Pickering in his journal, now in our possession, mentions having 

 seen this Goose in the mountains, especially numerous at a height 

 which he estimates as having been about seven thousand feet above 

 the level of the sea. He states that it appeared to be much less sus- 

 picious than other species with which he was acquainted, and when 

 disturbed, flies off, near the surface of the ground, without rising in the 

 air, like the species of North America. Dr. Pickering mentions hav- 

 ing seen this bird feeding on berries. 



4. Genus ANAS, Linn. Sjst. Nat. I, p. 194 (1766). 

 1. Anas superciliosa, Qmelin. 



Anas superciliosa, Gm. Syst. Nat. I, p. (1788). 

 Anas leucophrys, FoRSTER, Desc. An. p. 93 (1844). 



Gould, B. of Aust. VII, Plate IX. 

 According to Mr. Peale : 



" This species was found abundant in the Bay of Islands, New 

 Zealand, wherever there was fresh water. Its habits and voice are 

 much like those of the Mallard [Anas hoscJias)^ the female of which 

 it closely resembles, but is darker colored, and has a green instead of 

 a blue speculum. In all the specimens obtained by the Expedition, 

 the superciliary line and cheeks are of a pale fawn-color, and not white, 

 as described by Dr. Latham. 



" We saw Ducks in most of the Polynesian Islands, the identity of 

 which is doubtful, but they resemble the above species so closely, that 

 for the present they are referred to it. They are uniformly darker 

 colored, and want the white anterior margin to the speculum, which 

 is conspicuous in the New Zealand birds, and also gradually decrease 

 in size at each group of islands as we go north from Australia to the 

 equator; the specimens obtained at Upolu, one of the Navigator 

 Islands, being one-fifth smaller, but alike in plumage with others ob- 



