262 FALCONID^. 



//". Smaller : tarsal plumes pure white, 

 and not extending beyond joints of 



toes Kmnaetus juv., p. 272. 



b. Chest particoloured. 



c'. Penultimate interspace of tail broader than 

 subterminal band. 

 e". Abdomen ban-ed across. 



»'"'. Under wing-coverts whitish, spotted 



with black, like chest albonigei- ad., p. 271. 



k'". Under wing-coverts buflfy white, un- 

 spotted alhoniger juv., p. 271. 



V". Under wing-coverts thickly barred with 



black, like breast ; chest rufous lanceolatus ad., p. 270. 



f". Abdomen and entire breast broadly 



streaked with brownish black cirrhattts imm., p. 269. 



g". Abdomen uniform brown cirrhatus ad., p. 269. 



h". Abdomen white, faintly mottled with 

 rufous, not barred or streaked ; tarsal 



plumes thickly barred with black lanceolatus juv., p. 270. 



d'. Subterminal band of tail greater than or 



equal to penultimate interspace. 



i". Ear-coverts and sides of neck uniform, not 



streaked or mottled. 



m'". Upper tail-coverts uniform with tail, 



and barred with black in the same 



manner. [p. 262. 



a^. Thighs white, barred with black. . . . mauduyti ad. et juv., 

 6*. Thighs black, barred with white .... tyrannus vix ad., 

 n'". Upper tail- coverts dark brown, tipped p. 264. 

 and barred with white. 



c^. Bands on tail 3 coronatus ad., p. 266. 



<?*. Bands on taU 10 bellicostts ]uy., p. 265. 



k". Ear-coverts and sides of neck fulvous, 

 streaked with brown. 

 o". Tail-bands 5, counting the concealed 



basal one ; under surface rufescent or [p. 267. 



brown, with faint white bars nipalensis ad. et imm., 



p"'. Tail-bands 7 cirrhatus juv., p. 269. 



q"'. Tail-bands 8, very narrow limnaetm juv., p. 272. 



r'". Tail-bands 6. 



e*. Abdomen bufiy white, with faint 



rufous bars nipalensis juv., p. 267. 



/*. Underneath black, barred with white, tyranmis juY., -p. 204. 

 s'". Tail nearly imifomi, the bands very in- 

 distinct ; upper tail-coverts brown, the 

 tips whitish gurneyi juv., p. 273. 



1. Spizaetus mauduyti. 



L'Aigle hupe de Bresil, Briss. Orn. i. p. 446 (1760). 

 Grand Autour de la Cayenne, Maitd. Enc. Meth. p. 500 (1784). 

 Aigle moyen de Guiane, id. t. c. p. 475 (1784). 

 L'Autour huppe, Levaill. Ois. i. p. 114, pi. 26 (1799). 

 Falco mauduyti, Baud. Traite, ii. p. 73 (1800, ex Matid.). 

 Falco ornatus, Dattd. Traite, ii. p. 77 (1800, ex Levaill.) ; Max. Beitr. 

 iii. p. 78 (1820). 



