SKETCHES OF EUROPEAN ORNITHOLOGY. 481 
the Arctic regions. Migrates to Europe, on approach of winter. 
Food: fishes, Mollusca, and marine plants, obtained by diving. 
Female, differing so much, in plumage, from male, and moreover 
marked with a broad white band at base of bill, as to have been de- 
scribed as a distinct species, A. frenata. Fig. an adult male, and 
female. 
Pirate XIX. Crested Lark,—Alauda cristata,—l’ Alouette a 
haussecol noir, Fr. (A. cochevis, of Temminck ),—la Capellugola, 
Jt.,—die Haubenlerche, G.,—Gekuifde Leeurik, D. Common in 
South-Europe : rarely occurring northward. Female distinguished, 
from male, by smaller size, and shorter crest. Food, and nest: re- 
sembling those of A. arvensis. Eggs: 4—5, pale ashy-brown, with 
dark-brown spots. Fig. adult male, and female. 
Prate XX. Garden- Warbler,—Curruca hortensis,—le Bee-fin 
fauvette, Fr.,—Beccafico cenerino, It..—graue Grasmiicke, G..— 
Braemsluiper, D. Migratory : arriving in Britain, during April. 
Little inferior to Nightingale and Blackeap, in song. Nest: amid 
nettles and rank herbage, formed of roots, grasses, and moss. Eggs: 
4—5, yellowish-grey, blotched with wood-brown. 
TWENTIETH PART. 
PuaTE I. Red-collared Goatsucker,—Caprimulgus ruficollis,— 
’Engoulevent a collier roux, Fr. A new species of Caprimulgus ; 
killed, by Natterer, in south of Spain, where it is termed Samala. 
Imperial Cabinet of Vienna alone possesses specimens. Africa is 
supposed to constitute its native habitation. Fig. an adult male. 
Prare ILI. Black-winged Kite,—Elanus melanopterus,—l Ela- 
nion blanc, Fr. A beautiful species ; widely diffused over all the 
warm and temperate portions of the old continent. Food: birds, 
reptiles, amphibia, and insects captured on the wing. Nidification : 
apparently unknown. Fig. an adult, and young bird, 
Prate III. Bonelli’s Eagle,—Aquila Bonelli,—l Aigle Bonelli, 
Fr. A noble species ; first described by Temminck, as an occasional 
visitant of Europe. Fig. an adult male, superbly coloured. 
Prare IV. Siberian Thrush,—TZurdus Sibericus,—le Merle a 
sourcils blancs, Fr. A rare species, first described by Pallas; and 
supposed to connect the members of Petrocincla with those of Tur- 
dus genus. Male distinguished from Jemale, of both of which figures 
are given, by broad white streak above the eye. Nidification: not 
mentioned. 
VOL, IX., NO. XXVII. 6] 
