2G. rEKisoKKrs. 



103 



2G. PERISOREUS. 



Type. 



Perisoreus, Bp. Camp. List B. Eur. ^- N. Amer. p. 27 



n838) r*- infaustus. 



Dys(n-uithia, Swains. Faun. Bor.-Am<T. Birds, p. 2it(3 P. canadensis. 

 (1831) 



Head of Perisoreus infaustus. 



Baivje. Northern Europe, across Northern Asia to Saghalien 

 North America. 



Keij to the Species *. 



a. Tail rufous, the middle feathers only grey ; forehead 



brown ; sides of neck greyish . . " infaustus, p. 103. 



b. Tail grey, tipped with white ; forehead and sides of 



neck whitish. 

 «'. Dusky nuchal hood plumbeous black, and reach- 

 ing forward to, or in front of, the eyes. 

 a". Dorsal feathers without any whitish shafts 



in old and young ' canadensis, p. 104. 



*". Dorsal feathers with whitish shafts in both 



old and yoimg obscurus, p. 105. 



b'. Dusky nuchal hood bluish plumbeous, not reach- 

 ing to the eyes capitab's, p. 1C6. 



1. Perisoreus infaustus. 



Lanius infaustus, Linti. S. N. i. p. 138. 



Geai de Sib(5rie, Month. PI. Enl. iii. pi. GOB. 



Siberian Jay, Lath. Gen. Si/n. i. pt. i. p. 391. 



Corvus sibiricus, Bodd. Tabl. PL Enl. p. 37 ; Gm. S. N. i. p 



Corvus infaustus, 5/3a>7-w. Mus. Carls, iv. pi. 76; Tenwi. Ma 



i. p. 115 : Werner, Atlas, Oninivores, pi. 9. 

 Corvus russicus. Pall. Zoogr. Rosso-Asiat. i. p. 395. 

 Garrulus infaustus, VieilL N. Diet. d'Hist. Nat. xii. p. 478 ; Naum 



Vog. Deutschl. ii. Taf. 350 ; Gould, B. Eur. iii. pi. 215 ; Schl. u. Su- 



373. 

 ^an. d'Orn. 



* The characters of the American species are derived from the great work on 

 Nortli-American Birds by Messrs. Buird, Brewer, and Ridgway. Specimens of 

 all tbree are in tlie Museum ; but tlie characters seemed to be so well expressed 

 that I could not improve upon them. 



