40 



ANATIDiE. 



N. America, 227. BurPEL-HEADED GoLDENEYE. Clangula ciTbeola (LinasQus). Four 



occurrences in Gt. Britain at long intervals. 



Wing-spot as in last. 



Male. Head and thi^oat glossy bluish black ; large white -patch form- 

 ing an erectile crest behind round nape ; scapulars white ; wing-spot 

 white. 



Female. Head and neck ash-brown, with same white patch on head. 

 Length 14-15 inches. 



228. LoKG-TAiLED DucK, Or " Calloo." Harelda glacialis (Linnaeus). 

 Autumn to spring ; doubtless breeds sparingly in the Shetlands. 



Tail of fourteen feathers ; bill much shorter than head, slightly nar- 

 rowing and rounded towards the tip ; axillaries brown. 



Male in summer. Forehead, fore crown, and sides of head sooty grey ; 

 space round eye whitish ; throat, neck, and breast black ; back black, 

 margined with rufous. 



Male in ivinter. Scapulars white ; rump black. Two centre tail-feathers 

 black, and about five inches longer than the rest, which are white. Length 

 17 inches. 



Female, summer. Greyer than in winter. 



Female, ivinter. Crown and chin dark brown ; sides of head dull 

 white, patch on each side of neck dark brown ; tail not elongated. 

 Length IG inches. 



Sub-arctic. 229. Haelequin Duck. Cosmonetta histrionica (Linnaeus). Very 



rarely in winter. 



Bill much shorter than head, and Goose-shaped ; a small lobe on each 

 side of the mandible ; tail much graduated. 



Male. General colour dull blue ; head and neck blackish blue ; rusty 

 red stripe from eye to nape, with white line above ; flanks chestnut- 

 red ; white marks across breast. Wing-spot piwpZe, Length 17 inches. 



Female. General colour brown above ; below whitish ; ivhite patch on 

 forehead, and ivhite spot behind eye. Wing-spot bluish black. Length 

 14 inches. 



Arctic. 230. Steller's Eidek. Somatcria stellcri (Pallas). Two occurrences : 



Norfolk, Feb. 1830 ; Yorkshire, August 1845, 



Male. Head and back of neck white ; line across forehead, spot 

 between bill and eye, and patch on nape green. Wing-spot purple 

 between two white bars. 



Female. General colour rufous brown, crossed with short black bars 

 below ; wing-spot bluish black. Length 18-20 inches. 



Arctic 



America, 



Greenland, 



231. KiKG Eider. Somateria spectahilis (Linnaeus). Earely, in 

 winter. 



Central line of feathers on the upper mandible running doivn to 

 nostrils. 



Male. Crown bluish grey, sides of head below eye pale green ; black 

 stripe on throat, meeting at chin ; scapulars black. 



