5] . nrxASTUR. • nyo 



Ket) to the Species. 



a. Tail rufous, with indistinct cross bauds of dark brown. 



a'. Primary coverts brown, like the quills teesa, p. 295. 



h'. Primary coverts rufous, like the quills liventer, p. 290. 



b. Tail ashy brown, with dark brown cross bands. 



c'. Tail-coverts not tipped with white ; primary co- 

 verts rufous riijipenms, p. 299. 



cl'. Tail-coverts tipped with pure white; primary 



coverts blackish indicus, p. 297. 



1. Butastur teesa. 



Zuggun Falcon, Lath. Gen. Hist. i. p. 190 (1821). 



Circus teesa, Frankl. P. Z. S. 1831, p. 11-5 (descr. orig.). 



Astur hvder, Sykes, P. Z. S. 1832, p. 79. 



Buteo teesa. Gray ^- Hardw. 111. Ltd. Zool ii. pi. 30 (1833) ; Jerd. 



Madr. Journ. x. p. 77 (1839) ; .Schl. Mm. P.-JB. Buteonea, p. 22 



(1862). 

 Butastur teesa, Hodys. J. A. S. B. xii. p. 311 (1843). 

 Poliomis teesa, Kmip, Classif. Sdiuj. u. Viig. p. 122 (1844) ; Gray, 



Gen. B. i. p. 30 (1849) ; :^lyth, Cat. B. Mm. A. S. B. p. 21 (1849) ; 



Bp. Consp. I p. 18 (1850) ; Sfrickl. Orn. Syn. p. 125 ( 1855) ; Jerd. 



B. Lid. i. p. 92 (1862) ; Gray, Hand-l. B. i. p. 15 (1869) ; Hume, 



Rough Notes, ii. p. 286 (1870) ; id. Stray F. p. 159 (1873). 



Adult female. Above pale rufous brown, darker and more de- 

 cided brown on the head and hind neck, the nape-feathers for the 

 most part white and conspicuously showing ; all the feathers of 

 upper surface with more or less distinct black shaft-stripes, and 

 many of them mottled with ashy fulvous on their margins ; wing- 

 coverts like the back, excepting the median series, which are lighter 

 and much varied with whitish or rufous buff; primary coverts 

 blackish, externally shaded with ashy ; quills pale brown, rufescent 

 near shafts, the primaries externally ashy grey, barred and broadly 

 tipped with dark brown, the secondaries pale brown like the back, 

 the innermost also slightly mottled with whitish ; inner lining of 

 wing pure white, the secondaries inclining to greyish, with indica- 

 tions of obsolete greyish cross bars ; upper tail-coverts pale rufous, 

 the lower ones with indications of greyish black cross bars ; tail 

 pale rufous, tipped with buffy white, and crossed with six or seven 

 indistinct bars of greyish black, the subterminal one darker and 

 broader ; sides of face rufous brown ; throat yelloAvish white, bor- 

 dered on each side with a moustachial line of black, and having a 

 broad stripe of the same down the centre ; breast pale rufous brown, 

 somewhat varied with yellowish white spots, more or less distinct on 

 both sides of the feather ; rest of under surface buify white, barred 

 with pale rufous, loss distinct on the thighs and under tail-coverts ; 

 under wing-coverts white, the median ones streaked and subtermi- 

 nally spotted with rufous brown ; cere, gape, and base of lower 

 mandible bright orange ; the tip of the bill black, the intermediate 

 part fleshy ; feet dingy orange-yellow ; iris pale yellowish white, 

 eyelid orange-yellow. Total length 18-5 inches, culmen 1*4, wing 

 12-2, tail 7-8, tarsus 2-55. 



