490 SKETCHES OF EUROPEAN ORNITHOLOGY. 
borée, ou de neige, Fr.,—die nordische Schneegans, G.,—nordsche 
Sneuwgans, D. This fine bird,—Anas hyperborea, of olden time, 
—a native of polar regions, migrates, in winter, to eastern Europe ; 
and occurs in Austria and Prussia. Common, also, in Hudson’s bay. 
Food: generally, insects, rushes, roots of reeds and other marsh- 
plants, torn up, in hog-fashion, by its strong and serrated bill: in 
Autumn, berries, especially those of Empetrum nigrum. Eggs: 
white, regularly ovate; larger than those of Eider Duck. Fig. an 
adult. 
Prate XIV. Creeping Locustelle,—Locustella—Sylvia—certhi- 
ola,—le Bec-fin trapu, /r. A very rare bird ; first described by 
Pallas ; and distinguishable from the other two species of the genus, 
by larger size and greyish-white termination of the tail-feathers. 
Occurs in South-Russia. Habits, and nidification, unknown. Fig. 
two of adult bird. 
Prate XV. Bridled Guillemot,— Uria lacrymans,—le Guillemot 
bridé, Fr. Considered, by Temminck and the French naturalists, as 
a distinct species; but commonly associating with WU. troile ; and 
differing from it, only, in the white line which, encircling the eye, 
passes down the side of the head. Fig. an adult. 
Prats XVI. Rosy Grosbeak,—Frythrospiza rosea,—le Bouv- 
reuil Pallas, Fr. A native of the northern regions of the old Conti- 
nent ; but occasionally visiting Hungary and central Europe. Dif- 
fers from Fringilla purpurea, of Wilson, and &. erythrina, in its 
longer and less laterally swollen bill. ig. an adult male. Female, 
at present, unknown. 
Pirate XVII. Rock or Shore-Pipit,—Anthus aquaticus,—le Pi- 
pit spioncelle, #’7.,—Pispolada spioncella, J¢.,—der Wasser-Piper, G. 
Heretofore known under the various names of Alauda petrosa,—ob- 
scura, and Dusky Lark. Permanent in the British islands ; inha- 
biting rocky and elevated portions of the coast, during summer ;—in 
autumn and winter, muddy sea-shores. Resembles, in call-note and 
song, the common Pipit ; but distinguishable by larger size, and 
more obscure and dusky colouring of plumage. Food: marine in- 
sects and worms. West: formed in clefts and ledges of rocks, of 
marine grasses, lined with hair and fine vegetable substances. Hogs : 
4—5, light yellowish-grey, with reddish-brown specks over larger 
end and sometimes whole surface. Mr. Gould suspects the existence 
of two species of Rock-Pipit: the British never exhibiting the uni-- 
form vinous tint which pervades the breast of continental specimens. 
Fig. an adult. 
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