BIRDS — FRINGILLIPAK — Gl'IRACA CAKRDLKA. 



499 



Tho female is readily ilisfinguisliaLle from that of G. ludovidana hy the wliatlo of light 

 ciunaiuou brown beneath, without streaks or spots, (or else very obsolete,) and the existence of 

 the same color on the back. The tail is more olive groen, and the quills are white at their 

 bases. An uuuiistakeable character is found in the under wing coverts and axiliaries, wliicli, 

 in the female hulov.ctana, are sallron or orange yellow instead of the clear lemon or gamboge 

 yellow of mdanocephala. 



List of specimens. 



GUIRACA CAERULEA, Swainson. 



Bine Grosbeak. 



Loxia caeruUa, Linn. Syst. Nat. I, 1766, 306. — Wilson, Am. Orn. Ill, 1811, 78 ; pi. .\xiv, f. G.— r Wagler, Isis, 



1831,525. 

 Guiraca caetuUa, Swainson, Birds Mex. in Pliil. Mag. I, 1827, 438. 

 Friii-iHa caeriUea, Aud. Orn. Biog. II, 1834, 140 : V, 508 ; pi. 122. 

 Coccoburus caeruUus, Sw. Birds II, 1837, 277.— Aud. Syn. It39.— Ib. Birds Amer. Ill, 1841,204; pi. 204.— Cabanis, 



Mus. Hcin. 1851, 152. 

 Cyanolozia caeruha, Bp. Conspectus, 1850, 502. 

 Goniaphoea caeruUa^ Bp. 

 Blue grosbeak, Pennant, Arc. Zool. II, 1785, 351. 



Sp. Ch. — Brilliant blue ; darker across the middle of the back. Space around base of the bill and lores, with tail feathers, 

 black. Two bands on the wing across the tips of the primary and secondary coverts, with outer edges of tertiaries, reddish 

 brown. Feathers on the posterior portion of the under surface tipped narrowly with grayish white. 



Female yellowish brown above, brownish yellow beneath ; darkest across the breast, and lightest on the throat. Wing 

 coverts and tcrtials broadly edged with brownish yellow. A faint trace of blue on the crown. Length of male 7.25 ; wing, 

 3.50; tail, 2.80. 



Hab. — More southern United States from Atlantic to Pacific, south to Mexico. 



This species exhibits but little variety of coloration, except in the purity and intensity of its 

 blue. 



