ANA TIDJ^ — ANSEIUX.E : GEESE. 



899 



Analysis of Species and Subspecies. 



Not white in main body-color. Nearly tlie size of tlie next ecerulescens 



Pure wliite, with black wing-tips ; head rusty or not. 



Large: length 30.00 ; wing 17.00 or more. Bill smooth hyperhoreus nivalis 



Small : length about 25.00 ; wing 10.00 or less. Bill smooth hyperhoreus 



Very small: length under 24.00 ; wing 15.00 or less. Bill studded with papilliB. {Ejcanthemops.) . . rossi 



(Suhgemts Chen.) 



C. coerules'ceiis. (Lat. ecerulescens, bluish. Fig. 628.) Blue Snow Goose. Blue 

 Goose. Blue-wixged Goose. Blue Wavey. Blue Brant. White-headed Goose. 

 Bald-headed Brant. White-headed Bald Brant. Adult ^ 9- l>ill 'i"^l feet llesh- 

 pink, fonner with the recess betweeu the inaudibles black, the nails whitish ; iris dark browu ; 



l''iu. OJS. — Bluu (Ji)o.s.-. (From "Wild Fowl of North Ameiicu," by 1). G. Elliot. 



claws dusky. Head and neck above white ; neck below, passing on to back and breast, dusky- 

 gray, then fading into whitish on under parts, changing on wings into line bluish-gray, or sil- 

 very-ash ; rump and upper tail-coverts whitish ; quills and tail-feathers dusky, edged with 

 whitish ; i)riiiuiries black. Young similar, but head mostly dark grayish-brown ; bill and feet 

 dusky. Nearly the size of the larger Snow Goose, and resembling the young of that species. 

 Length 25.00-28.00 ; wing l«>.00 ; bill 2.25; tarsus 3.00. North America, chieHy in the inte- 

 rior from its breeding grounds about Hudson's Bay to the Gulf of Mexico, occasionally on 

 th(( Atlantic coast ; Bahamas ; Cuba ; Lake Umbagog, Maine ; not very common, but well 

 known enough to have acquired a gunner's synonymy (see above). This is a perfectly good 

 species, which I have retained throughout my editions of the Key without question, thoui^h 

 it was banislied to the A. O. \1. Hypothetical List, l.st ed. lHS(i. p. 'XA, No. 8. The taboo 

 was afterward taken off, and the species restored to full cominuuidu in A. O. U. List, 2d ed. 

 1895, No. lfi<>.L 



