37G Synopsis of the Birds 



slow, but long sustained ; Ay either in straight or convergent 

 lines. Sight ;md hearing excellent. 



Spread all over the world, but much more numerous in 

 cold and temperate countries, to and from which they migrate. 

 Species numerous. 



315. Anser hyperboretjs, Palias. Bill rising high upon the 

 forehead ; sides of the bill with longitudinal furrows and den- 

 ticulations ; tail of sixteen feathers. 



Adult while, quills black at the point: bill and feet red. 



Young purplish-brown; wing-coverts and rump, bluish-ash; 

 more or less white according to age. 



Snow Goose, Anas hyperborea, Wils. Am. Orn. viii. p. 76. 

 pi. Go. fig. E>. adult male ; and p. jjq. pi. Gd.fig. 5. y°ung. 

 Anser niveus, Briss. Anas hyperborea and c&rulescens, L. 



Inhabits within the Arctic circle : migrating during winter 

 to the more temperate regions of both continents : not uncom- 

 mon during winter in the middle states. 



316. Aaser .U.BIFRONS, Beclis*. Brownish, beneath white varied 

 with black ; frontlet and throat white, margined with black- 

 ish ; bill and feet orange ; nails whitish. 



White-fronted Goose, Lath. Laughing Goose, Edivard's 

 Glean, t. 1 53. Anas albifrons, Gm. 



Inhabits the Arctic regions, migrating during winter to 

 the temperate climes of both continents : rare and accidental 

 in the middle states, as well as in Italy. 



317. Anser segetum, Meyer. Dark cinereous, beneath whitish; 

 rump blackish ; folded wings reaching beyond the tail ; bill 

 long, depressed, black and orange, nail black, tail of eigh- 

 teen feathers. 



Bean Goose, Latham. L'oie sauvage, Buff. pi. enl. 985. 

 Anas segetum, Gm. Anser sylvestris, Briss. 



Inhabits the Arctic regions of both continents, migrating 

 periodically to more genial climates : hardly ever seen even 



