CORVID/E — THE CROW'S. 



283 



It would perhaps lie not very for out of the way to consider Sections A 



Cyanocilta califomica 



and r, as representing in their general characters, respectively, the types 

 from which their subdivisions have spnui". 



A. Tail lon-er than wings. A sniierciliary sti-ipo of whitish streaks ; jn-ular 

 an. poctoral Ibathors faintly cdge.l wilh l.h.ish, postcriorlv f.»-.nin.r an in.li.rtinot 

 collar, uitorrnptod medially. Ea.-covert. ,l„sky, except in var. vnn,lhonse!. 



a. Forehead and nasal tnfts hoary wliite; the snperciliary stripe a continnou. 

 wash ol the same. Scapulars blue like the wings; dorsal region (the inter- 

 scapulars) as hght-eolored as the lower parts. 



C. floridana. Back and lower j.arts pale ashy-l,rown; lower tnil- 

 coverts hright blue. Wing, 4.50 ; tail, 5.70 ; bill, 1.20 and .35 ; tarsu. 

 1.40; middle too, .85. Wing-formula, 4, 5, 6, 7, 3, 8, 9, 2, 10; fir.sti 

 1.80 shorter than longest. Graduation of tail, 1.50. Ilnh. Floridii 

 (only). 



h. Forehead and nasal tufts bright blue ; superciliary stripe composed of 

 narrow streaks; scapulars ashy like the back; back much darker than the 

 lower parts. 



C. californica. 



Lower tail-coverts bright bine, dorsal region not well-defined ashy; 

 auricnlars bluish, beneath continuous pure ash. Superciliary streak 

 well defined. Wing, 5.15; tail, COO; bill, 1.35 and .3(1;" tarsus, 

 1.40; middle toe, .85. Wing-fornnila, fourth, liith, and sixth 

 equal; 7,3, 8, 9=2; first, 1.80 shorter than longest. Gradua- 

 tion of tail, .90. Ilnh. Rocky Mountains and .Aliddle Province of 



United States .... ..n,. „. ^ ^ ii 



var. IV 00(1 ho u isei. 



Lower tail-coverts pure white; dor,«al region well-defined ashy; 

 auricnlars blackish; beneath dull white, approaching ash on bieast. 

 Superciliary streak indistinct. Wing, 5.C5; tail, 0.00; bill, 1.20 

 and .35; tarsus, 1.42; middle toe, .90. Wing-formula, 5, G,' 7, 4, 

 8, 3, 9, 10=2; first, 2.20 shorter than longest. Graduation 

 of tail, .80. Hab. Mexico (Orizaba ; City of Mexico) var. s u m ich ra.'f /.> 



' C,janoci(/ammichram, R.noWAv, i;,.p. II. S. Geol. Expl. 40th Par. All Mexican Oiann- 

 ««.« with a wlntisl. superciliary strenk, blue edgings to jngular IVatl.ers, etc., are to he referred 

 to tins strongly ina.ked race. A very eouspi.n>ous character of this variety is the stroi,.- " hook- 

 to the ,,pper mandible ; the tip beyond the notch being much elongated, or unusuallv " pro- 

 Uucea. In the collection is a specimen («0,0589, Jft'xico, A. Boucard) whi.di we have re- 



