FALCONID^E, DIURNAL BIRDS OF PREY. GEN. 159. 217 



i, 106 ; AuD., i, 40, pi. 9 ; Cass, in Bo., 28. In adult plumage, this hand- 

 some hawk is unmistakahle ; but the student may require to look closely 

 after the young. The western form, eveu darker "red" than the eastern, is 

 B. eUgam Cass., Proc. Phila. Acad. 1855, 281, and in Bd., 28, figured in 

 P. RR. Rep. X, Gala. Route, pi. 2 ; Coop., 477 lineatus. 



2, A'v Band-tailed Buzzard. Black or blackish, upper parts with an indefinite 

 number of pure white spots ; bases of primaries white with lilack bars ; tail 

 of the adult Avitli three Ijroad white bars, of the young with several narrower 

 imperfect ones; j'oung varied with rusty? Smaller than any of the fore- 

 going, more slightlj' built, and otherwise obviously different; about 18; 

 wing 15 ; tail 9. California (Cooper), Arizona (C'oue.i), and southward. 

 Sclatee, Trans. Zool. Soc. 1858, 263, pi. 59 (Mexico) ; Coues, Proc. 



Phila. Acad. 1866, 46; Coop., 479 zonoceecus. 



*** Three outer quills emarginate on iuuer web. 



o ^-' iSicainson's Buzzard. Extremely variable in color, but usually showing 

 a broad dark pectoral band contrasted with light surroundings, and numer- 

 ous (8-12) narrow dark tail bars. A smaller bird than the foregoing 

 (except zonocercus) ; 9 about 20 ; wing 16 ; tail 8J ; $ less. Not so stoutly 

 built ; wings and tail relatively longer. Chiefly Western Noi'th America ; 

 also, Canada and Massachusetts. It comes nearest B. vidgarlfi of Europe. 

 B. vulgaris Sw. and Rich., F. B.-A. ii, 47, pi. 27 ; Nutt., ii, 559 ; Add., 

 i, 30, pi. 6; Falco huteo Aud., Orn. Biog. iv, 208, pi. 372; B. montanus 

 Nutt., i, 2d ed. 112; B. swainsoni Cass, in Bd., 19 (not of 111. 98); 

 Coop., 476; Bd., P. R R. Rep. x, pt. iii, pis. 12, 13. B. hairdii Hoy, 

 Proc. Phila. Acad. 1853, 451 (Wisconsin) ; Cass., 111. i, 99, 257, pi. 41, 

 and in Bd., 21, is the young, diff'ering materiall}' in color. B. insignatus 

 Cass., 111. 102, 198, pi. 31, and in Bd., 23 (Canada ; Nebraska ; California) ; 

 Coop., 474, is a melanotic plumage. ... .... swainsonii. 



/, "V Broad-winqed Buzzard. Above, umber-brown, the feathers with paler, 

 or even with fcdvous or ashy-white, edging, those of the hind head and nape 

 cottony-white at base ; quills blackish, most of the inner webs white, barred 

 with dusky ; tail with about three broad dark zones alternating with narrow 

 M'hite ones, and white-tijjped ; consjricuous dusky maxillary patches; under 

 parts white, or tawny, variously streaked, spotted or barred with rusty or 

 rufous, this color ■ usually predominating in adult birds, when the white 

 chiefly appears as oval or circular spots on each feather ; throat generally 

 whiter than elsewhere, narrowly dark-lined. In the young, the upper parts 

 are duller brown, varied with white, the under parts tawny-whitish with 

 linear and oblong dark spots, the tail grayish-ljrown with numerous dark 

 bars. 9 18 ; wing 11 ; tail 7 ; $ less. Eastern North America, and 

 throughout Middle America to Panama ; common. A rather small but stout 

 species, with short broad wings, very difierent from anj^ of the foregoing, 

 and easily recognized; the maxillarj' patches are a strong feature. WiLS., 

 vi, 92, pi. 54, f. 1 ; Nutt., i, 105 ; Aud., i, 43, pi. 10 ; Cass, in Bd., 29. 

 Falco latissinms Wils., I. c. (later copies) pennsylvanicus. 



KEY TO N-. A. BIRDS. 28 



