CORVlDvE— THE CROWS. 20r) 



of their all belon^'infj to oik; piiiuitivu t'onu. Those din'oronces may be 

 cxpiVHseil as I'oUnws . — 



CoMMdX ('i[.M!A(ri.i:.-<. Nasiil tiit'ls, |int<-li on >i(lc <u lowiT j:iw anil one 

 nbuvc I'Vc, (liolli I'Vi'liils.) l.iiL'lil liluc; icMiiiiiulcr of liicc and lliroal lilack. 

 Back, anil uppri- smliii'i' ol' wini;s anil tail (tin' I'onr runtral leatluTs), f,'iven, the 

 latter tin;,'! (1 witii Miif at eml ; tlic rest of tail-fealliufs lirijilil yellow. Belly 

 and crissniii \aiyiii^- I'loni lui^'lil yellow to green. Forehead yellowish or 

 whitish. 



a. Xasal lulls short, only eoveringf the nostrils; whi-le top of head {ex- 

 cept anteriorly; and nape liri^ht lilne. 



1. Body lienealli, and eri.ssinu, green. Ilab. Mexieo and South Texas. 



var. I nx uosa. 



2. Body beneath, and cri.ssnni, yellow," sides more greoni.sh. Hub. 

 Guatemala and lloiiilnras v.w. i/ uatemal e nsis. 



b. Nasal liit'l eloiin;aleil, t'orminji: an anterior crest, the leathers reaching far 

 beyond nostrils. Whole to)) of head [lale heavy yellow, glossed behind with 

 blnish. 



3. Body beneath, and erissnni. very bright gamboge-yellow. Ilah. 

 Colombia, Eciiadoi', Bogota, and IJolivia .... var. incas. 



Thus, stai'tiiio with the green-bellied liwuosa of the Itio (h'aiule, we cmiic 

 to the yellow-bellied iiiuitcnKilcnuis ; but interniediate loetdities show dif- 

 ferent proportions of the two colors. The nasal tufts in the first do not 

 e.xtend l)eyoiid the nasal fos.sit> ; and tlie frontal yellowi.sh is very narrow. 

 In the second tliese tiitts reach beyond tlie Ibssio, and the fronttd yellowish 

 is more e.\tended. In inrar, a,!j;ain the ntisal tufts have retiched their 

 maximum, M'hile the frontal yellowish extends over the whole cap, leaving 

 only a trace of blue on the nape. 



Xanthoura incas, var. luxuosa, Bonap. 



OBEEN JAY. 



Oamiliis liixitosH.t, l.i;ssns, Rev. Zool. A|iril, 1830, 100. Ciifiiwrnrri.i' lir:rnoiiii^, T)v Bus, 

 Esipiissi's OriiitliiiU)gii|iii's, iv, IMS, pi. xviii. — C'.\ssin, lUiist. I, 18.")3, I, pi. i. 

 Xtmthoiim hi.ricisn, Kon. .('i)nsp. Is.'iO, ;iSO. — (\\ii,\S:is, Mus. Hein. IS')], 224. — 

 BamiI), liirils X. Am. lS,"i8, ,"i8!). Pirn clihii-ondlii, W.voi.l-.u, isis, 1820, 7.')0 (young 

 mall'; nana' lirlmigs to Corriin /u'riiciiouii, (J.M.V C'l/diini-nrii.f (■ii(iiiirii/ii7/uii, Cahanis, 

 Finuui I'l'niana, 1844 - 4ti, 2;>;5 (iioti'K ('iiiiinu'Driij; iiiiois, " lioiin.Kur." I.awkknx'K, 

 Ann. \. Y. l-yi'. V, Ajiril, ISni, ll.-> (first added lii-rc to I'auiia of I'nitcd States^ 



Sp. CiiAU. Wings sliortei' than the tail, which is much gradnatcd, the lateral leathers 

 1.2.5 inches sliorti'r. Above green: beneath yellow, glossed eonliimon.sly with green; 

 inside of wings and onler I'onr tail-leathers sli-aw-yellow; rest of tail feathers green, 

 glossed with bhie. Sides of Ihe head, and benealli IVom the bill to the forepart of tlie 

 breast, velvet-blaek. Crown, na|ie. and a short maxillary stripe rnnning np to the eye and 

 involving the npper eyelid, bi'illiant bine; the nostril-feathers rather darker; the sides of 

 the forehead whitish. Bill blrek ; leet lead-coloi-. Length, 11.00 ; wing, 4.7o; tail, 5.40; 

 tarsus, 1.0"). 



Had. Valley of Rio Grande, of Texas, and sonthward. 



