IIQ NORTH AMERICAN BIRDS. 



a\ Culmcn not more than 2.30, tarsus less than 3.00. 



Adult: Fore part of head, all round, to about half wa)' across lores and 

 forehead, white ; rest of head grayish brown (darkest next the white), 

 as are also the neck and upper parts, the latter varied by distinct gray- 

 ish tips to the feathers ; lower parts grayisli white, blotched or irregu- 

 larly spotted with black ; anal region, crissuni, and tail-coverts white ; 

 greater wing-covexls ash-gray tipped with white; secondaries blackish 

 ed"-ed with white ; bill light colored (yellowish or orange in life), with 

 white nail ; feet light-colored (orange or reddish in life). Young : 

 Similar to adult, but fore-part of head dusky instead of white, lower 

 parts without black markings, and nail of bill duskj-. 

 b\ Length about 28.00, wing 14.75-16.00, culmen 1.60-1.75, depth of upper 

 mandible at base about .90, width .85-1.05, tarsus 2.25-2.80. Eggs 

 3.06 X 2.03. Hah. Northern portions of eastern iK'niisjilioi-o ; south- 

 eastern Greenland?. 171. A. albifrons(GMEL.). White-fronted Goose. 

 b\ Length 27.00-30.00, wing 14.25-17.50, culmen 1.80-2.35, depth of upper 

 mandible at base .90-1.20, width .85-1.05, tarsus 2.60-3.20. Eggs 

 3.16X2.07. Hiib. North America, breeding fur northward; in 



winter, south to Mexico and Cuba 171(7. A. albifrons gambeli 



(Hautl.). American White-fronted Goose. 

 rt'. Culmen more than 2.30, tarsus more than 3.00. 



Adult : Head and neck grayish brown ; upper parts brownish gray, the 

 feathers tipped with grayish white ; rump blackish brown, lower parts 

 brownish gray, becoming white posteriorly, the upper tail-coverts and 

 sides of rump also white; bill chiefly light-colored (orange in life?), the 

 nail, culmen, and basal half of lower mandible black; feet light-colored 

 (orange-yellowish in life) ; length about 30.00-32.00, wing 18.50, or less, 

 culmen 2.35. tarsus 3.10. ILih. Northern portions of eastern hemi- 

 sphere ; saiil to have occurred in Canada and at Hudson's Ba}- {fide. 

 Ntjttall). a. segetum (GNfEi..). Bean Goose.' 



Gencs BRANTA Scopoli. (Page 87, pi. XXVIIL, fig. 5.) 



Species. 



Common Characters, — Bill and feet entire!}" deep black, at all ages ; head and 

 neck black, one or the other, or both, relieved by white patches ; tail-coverts 

 white; tail and quills uniform black; up]icr jiarts brownish, the feathers with 

 lighter tips; lower ])arts (from thighs forward) grayish white (in B. leucopsis only), 

 grayish, brownish, or dusky. 



a'. Head partly white. 



i'. Head black, with a somewhat triangular whitish patch on each cheek, 

 usually confluent on throat, but sometimes separated bj- a black throat- 

 stripe ; chest grayish or brownish, like breast and belly. 



' Anat tcgeliim Gmel., S. N. i. ITSS, 512. Anm- eci/clum Mever, Tasclib. ii. ISIO, 554. 



