FA LCON 1 1).]-: — THE FA L(X ) N S. 

 Afeasnrementii, 



287 



Sn. 



$ 13.50 1(1.0(1 



9 Ki.oo- 17.j:. 



^ 13.1',") -11.00 

 9 ll.DO- 



15.50- 



Tail. 



!».."iO 10.00 

 i).50- I |.;50 



i).0(U 

 i).()0- 



!)..")()- 



A lar^o coll(>oti()ii of .siiecimens df this race ])iv.s(Mit.s a scrius nuiiKH'tiii.n- 

 &o?r(Y//.>,' witli the Wauk Idiiii known as '•ni/nnis"- ovciv possililc condition 

 betwoLM) the two huini,' indicated in tlie vnw^ti of indivi(hial variation. The 

 liylitest styles as di.stinndislied from van harca/is always have the tihia^ 

 barred with rufous; the cri.ssuui, als. is -cnerally liarred, on the throat 

 the blacld.sh-brown predominates, and tin tail has more or !(^ss iierfect bais 

 to the roots of the feutliers; -generally, liowever, tlie.se are merely indicated 

 by projections from the shafts. 



The extreme condition of this is the inelanistic form which Mr. Cassin 

 described as " /;«/ro m//o'/w " ; the darlvcst example of w](ich (r.,4Sl, Teta- 

 liiina, C'al. ; E. Saumels) is entirely Idackish-lirown, wini^s and .scapulars 

 with feathers somewhat paler at ti])s ; breast inclinin5>- to dark .se])ia-1irowii, 

 the feathers with black shaft-stivaks ; tiliial feathi'is laintly li])ped with pale 

 grayish-brown ; lower (ail-coverts tii)i)ed and liarred with rufous ; u])per tail- 

 coverts deep rufous l)arre(l with black; tail deep chestnut-rufous, the sub- 

 terminal lilack band very broad, and anterior to this are nine or ten imperl'ect 

 narrower black bands. 



These fuliginous exauiples have always a more or less appreciably Mghtor 

 pectoral area, corre.s]K)uding to the white of this region seen in the ligliter 

 styles. 



t)f this race, almost each individual has its own characteristic markings, 

 and scarcely two are to be found alike in a very large series from Westein 

 North America. All the specinu'us i'rom the Hocky ■Mountains to the 

 Pacific, and from the tal)le-lands uf JMexico, as well as from ('itl)a and 

 Jamaica, are referrible to this variety, although we are not aware that in 

 the latter region the Itird ever bec(uues black. In the latter island this 

 species (as is also the case with many other liirds) seems to 1)e remarkably 

 subject to albinism. In the jieninsula of Lower California it is re[ilaced 

 by the var. liiraxainix, and in Central America by the very different var. 

 rosfariccnsis ; from both of which it may be distingui.shed by the numerous 

 transverse rufous bars crossing the jiosterior under jiarts, which character 

 serves also to distinguish the lightest examples from the eastern typical 

 horcalis. 



A specimen (50,70! ; Coloiu^ Cfrayson) from the Socorro Island, S. W, 

 Mexico, is like sonu; Fort Tejou specimens. 



