27. CYANOCITTA. Ill 



4. Cyanocitta coronata. 



Garrulus coronatus, Stcains. Phil. BImj. i. p. 437 ; Jard. .^- Selbij, III. 



Oni. ii. pi. 64. 

 Pica coronata, fVagler, Isk, 1829, p. 750. 

 Cyaiiuriis coronatus, Swains. Faun. Bor.-Ani. Birds, p. 495 ; Baird, 



B. N. Amer. p. 583 : Scl. P. Z. S. 1859, p. 381 ; Scl. ^- Salv. Ibis, 



1859, p. 22 ; Grai/, Hund-l. B. ii. p. 4. 

 Cyanocorax coronatus. Gray, Gen. B. ii. p. 307 ; Bp. P. Z. S. 1837, 



"p. 115. 

 Cyanogarrulus coronatus, Bp. C<msp. i. p. 377. 

 Cyanocitta coronata, Strickl. Ann. N. H. 1845, p. 261 ; Cub. Mns. 



Hein. Th. i. p. 222 ; Sclater, Cat. Am. B. p. 142 ; Scl. ^- Salv. 

 iNontencL Av. Neotr. p. 39. 

 Cyanocitta coronata, var. coronata, Ridyic. Am. Juurn. v. p. 42. 

 Cyanura stelleri, var. coronata, Baird, Brewer, Sf Bidgiv. N.-Amer. B. 



ii. p. 272, pi. 39. fig. 4 ; Coues, B. N. West, p. 215. 



Adult. Above purplish grey on the back aud scapulars, the lower 

 back, rump, and upper tail-coverts cobalt-blue, brighter on the latter ; 

 wings ultramarine, brighter ou the inner secondaries, which are 

 barred with black, as also the greater series of wing-coverts, the bars 

 on the latter very indistinct ; tail ultramarine, inclining to purplish 

 brown on the inner webs ; head all round and the fore neck sooty 

 black, the crest shaded with deep blue, all the feathers of the crown 

 also tipped with deep cobalt, inclining to silveiy white on the frontal 

 plumes ; throat ashy white, the feathers slightly washed with blue ; 

 rest of under surface clear blue, incliiiiug to purple on the breast ; 

 thighs and under wing-coverts ashy black, shaded with blue ; bill 

 and legs black. Total length 12-5 inches, culmen 1-1, wing 5-75, 

 tail 5-8, tarsus 1-7. 



Obs. This bird is scarcely distinguishable from C. cliademata 

 when the latter is blackish-crested, and cannot be considered a very 

 well pronounced species. The back is purplish grey, of a different 

 tint from the blue of the other, while both are distinct from the 

 true C. macroJopha, which has the back blackish. 



Hab. Highlands of Mexico. 



b. 

 c, d. 



5. Cyanocitta diademata. 



Cyanogarrulus diadematus, Bp. Consp. i. p. 377. 



Lophocorax diademata, Kaiip, J. f. O. 1854, p. Iv. 



Cyanocitta diademata, Sclater, Cat. Am. B. p. 143 ; Sclater ^- Salvin, 



Komencl. Av. Xeotr. p. 39. 

 Cyanurus diadematus, Grai/, Hand-l. B. ii. p. 4. 

 Cyanura coronata, var. diademata, Rid(/w. Amer. Joum. (3) v. p. 42. 

 Cyanura stelleri, var. diademata, Baird, Brewer, i§- Pidgw. N.-Amer. 



B. ii. p. 272 ; Coues, Kfi/ N.-Amer. B. p. 215. 



Adult male. General colour above greenish blue, brighter and 

 more cobalt on the rump aud upper tail-coverts : the tail darker blue 

 and more ultramarine, all the feathers very plainly crossed with 



