36 



4. Corone caurina. 



Corvus caurinus, Baird, B. N. Amcr. p. 569, pi. xxiv. ; Dull S( Bunn. 



Tr. Chk. Acad. i. p. 286 ; Gray, Hand-l. B. ii. p. 13 ; Finsch, 



Abhandl. Brem. iii. p. 41 ; Cooper, Oi-n. Calif, p. 285 ; Baird, 



Brewer, ^- Ridgw. N.-Amer. B. ii. p. 248. 

 Coitus americauus,Tar. ^. ? caurinus, Coues, Key N.-Amer. B. p. 163; 



id. B. North-tvest, p. 206. 



Adult. General colour brown, with a dull violet gloss ; wing- 

 coverts like the hack, the quiUs externally glossed with green, as 

 also the primary-coverts, the inner webs with a greenish steel gloss ; 

 tail steel-black, the centre feathers glossed with violet like the back ; 

 head and neck duller black all round, the ear-coverts faintly shaded 

 with green ; throat-plumes slightly different in texture from those 

 of the other parts of the under surface, but not lanceolate ; rest of 

 under surface black, glossed with violet ; bill and legs black. Total 

 length 15-5 inches, culmen 2-05, wing ll'l, tail 7"1, tarsus 1-95. 



Hah. North-western coast of North America. 



a. Ad. sk. "West side of Rocky Mountains. J. K. Lord, Esq. [P.]. 



b. Ad. sk. Vancouver Island. J. K. Lord, Esq. [C.j. 



5. Corone mexicana. 



La Grande Pie du M^xique, Briss. Orn. ii. p. 43. 



Mexican Crow, Lath. Gen. Syn. i. p. 396. 



Corvus mexicanus, G7n. Syst. Nat. i. p. 375 (ex Lath.) ; S'chl. Bijdr. 



Dierk. Amster. fol. p. 11, pi. i. fig. 25 ; id. Mus. P.-B. Coraces, p. 25 ; 



Gray, Hand-l. B. ii. p. 13 ; Baird, Brewer, Sf Bidyw. N.-Amer. 



B. ii. p. 233 ; Latm: Mem. Bast. Sac. N. H. ii. p. 283. 



Adult. Plumage highly lustrous, blended ; soft birrnished steel- 

 blue changing to violet on the crown, and with a greenish cast on 

 lower parts. Wing 9 inches, tail 6-50, culmen 1-60, tarsus 1-20, 

 middle toe 1*10. Wing-formula : — 4, 3, 5 ; fii-st quill very much 

 longer than tenth. (Baird, Brewer, and liidgway, I. c.) 



6. Corone corone. 



La Corneille, Briss. Orn. ii. p. 12 ; 3Iontb. PI Enl. iii. pi. 483. 

 Corvus corone, Linn. S. N. i. p. 155; Temm. Man. d'Orn. i. p. 108; 



Naum. Viiy. Deutschl.n. Taf. 53. fig. 2; Roux, Orn. Prov. pi. 130; 



Werner, Atlas, Omnivores, pi. 1 ; Gould, B. Bur. iii. pi, 221 ; 



Nordm. in Demid. Voy. Russ. Merid. iii. p. 120 ; Macyill. Br. B. 



i. p. 516 ; Yarr. Br. B. ii. p. 79 ; Kjarh. Orn. Dan. tab. xi. fig. 4 ; 



Gray, Gen. B. ii. p. 313 ; Bp. Consp. i. p. 386 ; S'chl. u. Susem. 



Vog. Eur. ii. Taf. 2, Taf. 3. tig. 1 ; Schl. F. J. Aves, p. 79 ; 3Iidd. 



Sibir. Reis. Zool. p. 160 ; Schl. Vog. Nederl. pi. 137 ; i'l. Dier. 



Nederl. Vog. pi. xiii. fig. 2 ; Horsf. 4'- Moore, Cat. B. 3Ius. E.I. 



Co. ii. p. 553 ; Fritsch, Vog. Eur. t;ib. 2S. fig. 3 ; Jaub. et Barth. 



Lap. Rich. Orn. p. 93 ; Scld. Bijdr. Dierk. Amsterd. fol. art. Cor\us, 



p. 8, pi. ] . tigs. 11, 12 ; Schrenck, Reis. Amurl. p. 325 ; Linderm. 



Vog. Griechenl. p. 70 ; Jerd. B. Ind. ii. p. 295 ; Radde, Reis. Sibir. 



p. 209; Deyl. et Gerbe, Orn. Eur. i. p. 198; Schl. Mus. P.-B. 



Coraces, p. 17 ; Doderl. Avif. Sicil. p. 62 ; Gould, B. Gt. Br. iii. 



