conviD.E — THE CROWS. 293 



lower tail-covorts hcinjr pure wliitc. Lorivs l»luf. LetiLrth. l.J.OO; winj^, 0.20; tail, 5.70; 

 cuinu'ii, l.iiU; (ieplh of l>ill, .40; Uirsus, \.'A>; niiddk' loc, ."J7. Fourth, tilth, and sixth 

 quills e(iu:d and lonj^'t-st, sci-ond shorttT than ninth ; lirst 2.20 shorter than longest. 

 (18,271>, Fort iJtichanan, Arizona, Dccnihcr ; Dr. Irwin.) Iinnaitin-e (S,4»)() ^J. Copper 

 Mines, Arizona). The l)lne, exeept that of the wings and tail, replaced by uull ash ; 

 the l>lue leathers appearing in seatteretl patehes. 



IIab. Arizona (Copj)er Mines, J. 11. Clark; and Fort Bnchauan, Dr. Irw'n, U. S. A.). 



The iieuresjt ally of this nice is the vur. sordid a of Mexico, wliich, how- 

 ever, dilieis ill many iiiiportaiit respects ; the ditlereiices between the two 

 being giving in the synopsis (page 880), it is unnecessary to repeat them 

 here. In both there is a tendency towards a party-colored bill; each exam- 

 l)le of the northern style, and most of those of the southern, having more 

 or less whitish on the lower mandible. 



Nothing definite is known as to the habits or reproduction of this bird. 



Cyanocitta ultramarina, var. couchi, Baird. 



ULTBAMABINE JAT. 



Garndus nltramarinus, Boxap, J. A. N. Sc. IV, 1825, 386 (not of Audubon). — Temm. 

 PI. Col. II, 439. Ci/anociUa ultra iiwrino, SniieKLAXD, Ann. & Mag. XV, 1845, 260. 

 — Gambel, J. A. N. Sc. 2d Ser. I, 1847, 45. — Baird, Birds N. Am. 588, pi. 60, f. 

 2. — Id. Mex. B. II, Birds 21, pi. xxii. Cifanoiftrrulus uUramnriniis, Box. Consp. 

 1850, 378. Cyanocitta couchi, Baikd, Birds N. Am. 1858, 588. 



Sp. Char. Tail rounded, but little graduated ; lateral feather about a quarter of an 

 inch shortest. Wings longer than the tail ; when closed, reaching nearly to its middle. 

 Above and an sides of hea<i and neck bright blue ; the lores blackish ; the middle of the 

 bac'k slightly duller, the tips of some of the leathers dark l)i()wn. Beneath Itrownish-ash, 

 paler on the chin and towards the anal region, which, with the crissum. is white. No 

 trace of white or black on the sides of the head, nor of any streaks or collar on the 

 breast. Length, (fresh.) 11.50; wing, G.OO; tail, (dried.) 5.40; tarsus, 1.50. 



IIab. South side of valley of Rio Grande, near the coast, and southward. 



This well-marked species is quite different in form from the C. californica, 

 having a shorter, more even tail, much longer wings, and stouter feet. The 

 absence of any collar or streaks on the breast and throat, of black or white 

 on the side of the head, and of decided ash on the back, are very well 

 marked features. There is also much more green in the blue of the head. 



As suggested in the P. IJ. K. Report, the birds collected by Lieutenant Couch 

 at Monterey, Mexico, although agreeing almost exactly with the original de- 

 scription of Bonaparte, are much smaller, and perhaps entitled to recognition 

 as a separate form. The tail is nearly^ two inches less, 540 instead of 7.00, 

 or over. 



Habits. The Ultramarine Jay is a well-marked species, and is specifically 

 quite distinct from the C. californica. It is found in the valley of the Eio 

 Grande, and thence southward and eastward in the northern provinces of 



