(JOliVIU.E — THE cuows. 233 



Spocies and Varieties. 



RAVENS. Fontlicis of llic diin and iliioal sliD'ciicd, oloii<:atcil, nnrrow and 



laiicciilaU-, willi llii'ir fiiitliiii's Very ili^linct. 



I. C. oorax vai. oarnivoruB, l,cii;iili aliDiit ^'tMO; wiii^, I7.<i(i; 

 tail, |(».ni»; nradiialioii ,,1 tail, 1.00 („ -J.-tO. I'Y'iitlicrs of the wrk 

 mill lircasl lijilil, mny liciicatli siMlacc. ifiih. Wluilo of Xoitli 

 Aiiiciiia; fiiiatciiialaaiMl Mcxiio. Hare in Kaslcni I'liiti'il Status. 

 •_'. C. oryptoleuoua. I,ciij.'tli about 21.0(1: winrr, 11. (id; tail, 

 S.,")(l; f,Madilalii>ri of lail, alHiiit l:S-,. I'Valliuis iil' iiuuk and lircasi 

 snowy-wiiilc IilmiumIIi sinfai'f. Hah. Llano E.«tai'ado, or Staked 

 I'laiii oC Texas; Arizona; Colorado. 



CROWS. Kealiiers of uliin and lliroat soft, short, liroad, oliluse, and with 



their welis lilend( d. 



A. An<,'lo of month I'eathi'red — North AniiM-iean ('ro\v.«. 



a. Tarsus loiijrer than tlie hill. Kiist ,,iii|| u«l loii^rer tiian tenth. 



;!. C. amerioanuB. The <ih»'^ of the jilnnia^'i! puriilish-violet. and 

 hardly iieree|iiilile on head and neek, middle toe ane elaw ratiier 

 shorter than tar.su.s, measured I'roni he^riunini; ol'.seiite|]a\ 



Win;;, 12'.^.'); tail, 7.2(1; eulinen, 1.8."); tarsus, 2.(1(1; inidiUe 

 toe, 1.4') ; winjr-formula, 4, o, .">, (J, 2; lir.st ciuill i'(|nal to 

 tenth, /full. Xorth Ameriea generally , var. « )» e c / <• o /, » .« ,' 



Wiuf., 12.00; tail, 7.20; etdiiieu, 2.10; tarsus. 2.;!0 ; miihlle 

 toe, l.tiO. Winff-fornmlay (moult inir). fftil/. South l-'lorida. 



var. Jlo r i da n us , 



4. C. OBBifragua. The yloss of pluinafro violaeeou.s-hlue, almost 

 green on the head, neek, anil breast, where very ])ereoptil)le. 

 Middle too and elaw loiif;er than tarsus, as above. Wiufr, 10..")0; 

 tail, G.")0 ; eulmen, l.u") ; tarsus, 1.0."); middle toe, 1,.']"). \Vin<;l 

 f'ormnia, 4. 3, 5; first quill .sliffhily shorter than tenth. Hah. 

 Atlantic (Joast of the United States. 



b. Tarsus shorter than the l)ill. First quill lonj^er than tenth. 



5. C. caurinus. Olo.ss of the plumafre as in tdnerirainiHj but 

 deeper. Win<;, 1(J.;J0 ; tail, 0.40; eulmeii, 1.!)."); tar.sus, 1.70; mid- 

 dle toe, 1.25. Wiiig-lbrmula, 4, 3, .">. F/ah. Northwestern coast 

 of North .\meriea. 



G. C. mezicanuB.' Plmnapc hisrhly lustrous, blended. Soft bur- 

 nished steel-blue, eliangiiif; to violet on the crown, and with a 

 greenish east on lower parts. Wiuf?, !»,00 ; tail, 0.50; cuhnon, 

 1.00; tar-sns, 1.20; middle too, 1.10. Wing-formnla, 4, 3.5. 

 First quill very nnich longer than tenth. Hab. Western Mexico 

 (Mazatlan, etc.). 

 B> Angle of month naked — West Indian Crows. 

 a, Tar.sus much shorter than the liill. 



' The iiioasuieniciits given arc of a California specimen, in order the better to show the great 

 distinction to lip made lictwccii this species and rniirinus, which is probably not found in 

 California, being a more northern .species, and having tlie coast of Wa.sIiington Territory, or 

 perhaps Oregon, as aliout its southern limit. 



^ a. vifxicanus, Gmki,. Syst. Nat. \i. 375. This .species is perfectly di.stinct from all the 

 others. TIk? |)lumngc has a silky blended character, and very high lustre, almost exactly as in 

 the larger (Jraklcs {Qiiinni/iis mtijnr, etc.). 



VOL. II. 30 



