COKVlDiE — TILE CROWS — CYANOCITTA. 305 



Cyanocitta sordida, Swainson. 



SIEBER'S JAY. 



Garruhis sorclidiis, SwAiNSoy, Philos. Mag. June, 18'J7, 4.37. Ie. Zool. III. III. n. s. tab. 

 86. — Ai>helocoma sordida, C^BASIS, Mus. Hcin. 1S51, 221. — Cyanocitta sordida, B.\ird, 

 Birds N. Amer. IS.'iS, 587 ; pi. Ix. f. 1. lu. Mex. Bound. Rep. II. 21. — CouEs, Pr. A. 

 N. Sc. 1SC6, 92. 



Pica Siehcri, Waglee, Syst. At. 1827. No. 2.3. 



Sp. Cii.\it. Bill short, thick ; half as high as long. Wings about as long or but little 

 longer than the tail, wliich is graduated 0.85 of an inch. Above and on sides of head and 

 nock bright blue, scarcely duller in the middle of tlie back. Beneath white ; the throat 

 and breast tinged with very faint bluish, especially across the latter. Tibial feathers dull 



bluish-ash ; crissura white, the tips of posterior feathers very faintly tinged with bluish- 

 gray. Length, 13 00; wing, 6.G0 ; tail, G. GO ; tarsus, 1. Go ; culmen, 1.00; height of bill 

 at base, 0.45. 



Hab. Miinbres region of Rocky Mountains, and south to table-lands of Mexico. 

 Southern Arizona (Fort Buchanan). 



This bird is found along the southern border of Arizona and N'ew Mexico, 

 but in wliat degree of abundance cannot now be stated. Nothing is known 

 of its liabits. 



It is not at all improbable that another species of Cyanocitta, C. ultm- 

 marina (Bonaparte) (Baird, Birds N. Anier. 588) may yet be found in Ari- 

 zona or New IMexico, as it has been taken very near tlie southern boun- 

 daries of those territories. It is allied to C. Cali/omica, but has a shorter, 

 more even tail, much longer wings, and stouter feet. There are no dark 

 marks beneath, and the ash of the back is scarcely appreciable. 

 39 



