AVES. 519 



obsolete. Wings with ten primaries, the third, fourth and fifth 

 subequal, the fourth longest of all. Tail moderate, subemarginate. 



Sp. Accentor modularis, Motacilla modularis L., BUFF. PI. enl. 615, fig. i, 

 NAUM. Taf. 92, figs. 3, 4, the hedge Accentor, hedge warbler; Accentor 

 olpinus BECHST., Motacilla alpina GM., BUFF. PL enl. 668, fig. 2, NAUM. 

 Taf. 92, fig. i, LESSON Ornith. PL 69, fig. 2, &c. These birds feed in 

 winter principally on seeds of plants, in summer on insects also. 



Sialia SWAINS. Bill short, with tip curved. Tarsus covered 

 anteriorly with a continuous horny scute. Wings long, with ten 

 primaries, the first very small, the second, third and fourth sub- 

 equal, the third longest of all. Tail somewhat short, subeven. 



Sp. Sialia WUsonii SWAINS., Motacilla sialis L., BUFF. PI. enl. 396, GU^B. 

 Iconogr., Ois. PI. 4, fig. i, WILSON Am. Ornith. PI. 3, fig. 5 ; Siala 

 arctica SWAINS., RICHABDSON Faun. Bor. Am., Birds, PL 39, North 

 America. 



Note. Here are to be inserted some genera of recent writers: 

 Petroica SWAINS. <fec. 



Saxicola BECHST., TEMM. (Species of Motacilla L.) Bill short, 

 broader than high at the base, almost straight, with culmen keeled, 

 continued above the forehead, bent at the tip, obscurely emarginate. 

 Bristles at the base of bill, inflected downwards. Nostrils lateral, 

 basal, oval, partly covered by membrane. Tarsus elongate, slender, 

 covered anteriorly with a continuous scute. Posterior claw arched, 

 shorter than hallux. Wings long, with ten primaries, the first 

 small, second long, third and fourth subequal, longest of all. Tail 

 even, short. 



Sp. Saxicola omanthe BECHST., Motacilla cenanthe L., BUFF. PI. enl. 554, 

 figs, i, 2 ; NAUM. Taf. 89, figs. 1,2; the wheat-ear, le motteux, der Stein- 

 schmatzer. Saxicola stapazina, Motac. stapazina L., Diet. univ. d'Hist. 

 nat., Ois, PL 35, fig. 2. 



Sub-genus Pratincola KOCH. Sp. Saxicola rulicola, Motacilla rubicola 

 L., PI. enl. 678, fig. i, LESS. Ornith. PL 68, fig. i, (under the erroneous 

 name of (Enanthe}, NAUM. Taf. 90, figs, i, 2, &c. Small, lively and shy 

 birds, feeding on insects ; there is often a great difference in the sexes in 

 respect to colour and marking. All the species belong to the Eastern 

 hemisphere, the most to Africa. 



Luscinia BRISS., BREHM. (Lusciola BLAS. and KEYSERL., spec, 

 of Motacilla L., spec, of Sylvia LATH., TEMM.). Bill short, broad 

 at the base, with culmen curved, keeled, compressed at the tip, 

 emarginate. Nostrils oval, placed at the anterior margin of a 



