256 AVES: RAPTORES. — XLI. 



a. Wings very loiip, primaries reaching to end of tail or farther; fail roundrd; 



iu.r.triis large uiul l»ruiid CAiHAint.s, 414. 



aa. Wings Hliort, siuncly reaching iiiiildle of tail; tail inincati-; iioslrila 

 small and narrow Catiiakista, 41D. 



414. CATHARTES Illi^i-r. (fca^apnjf, purifa-r.) 



801. C. aura (L.). 'Jikkky IUzz.vkd. lilaik, lustrous al)Ovc 

 ami soim-wliat mottled with brown ; skin of lii-ail and ni-ck ri-d. 

 L. 30. W. -'i. T. 12. Am., abundant, especially S. and S. \V. 

 (A South Anu rican name.) 



415. CATHARISTA Vieillot. (Ka^aptfo), to cleanse.) 



802. C. urubu (Vieillot). C.\iuu»>n Ckuw. Uniform dull 

 black. L. -M. \V. 17. T. 8. Trop. Amcr., straying N. to Ohio; 

 a heavier bird than the Turkey Buzzard, although shorter. 



Famii.v CLIII. FALCONID^. (The Falcons.) 

 Head fully feathered (except in the Old World Vulluriuo') ; no 

 ear tufts. Eyes lateral ; eyelids provided with lashes ; usually a 

 prnjectin'X bony eyebrow ; no complete facial disk. Toes always 

 naked, and usually tarsus also; hind toe not elevated. l?ill sUnit, 

 strongly hooked, its base not hidden ])y feathers. Claws very strong 

 anil shar|i, the hind claw not shorter than the others. Plumage 

 usually of blended rolors, liarred or streaked ; chanires considerable; 

 9 usually the larger. Genera 60 ; species 300 ; abounding every- 

 where. 



a. Outer toe not reversible ; claws graduated fnmi the largest (hind-toe) to 

 the smallest (outer). 

 b. Nostril luit circular, nor with an inner bony tubercle. (Arapilrina.) 

 c. Tarsus naked, reticulate all around, nuich shorter than tibia. 



d. Tail very deeply forked Ei>anoii>es, 416. 



dd. Tail merely emarginate; claws not grooved beneath. 



E1.A.MIS, 417. 

 cc. Tarsus not reticulate all around; claws grooved beneath, 

 e. Tarsus decidedly shorter than tibia. 

 /. Tarsus scutellate in front only; not fully feathered. 



(/. Toes somewhat webbed at base; cutting edge of upper man- 

 dible notched fcri.MA, 418. 



gff. Toes not webbed at all; neck feathers lancecolate. 



Hali.ketus, 425. 

 jy. Tarsus almost or ([uite entirely feathereil. 



h. Tarsus densely feathered all around down to base of toes. 



AyiMi.A, •J24. 

 hh. Tarsus densely feathered to base of toes except a bare strip 



behind Aiaiinii teo. 423. 



///'. Tarsus scutellate in front and behind. 



