30. ASTUBINA. 209 



towards maturity is marked by the gradual widening of the lon- 

 gitudinal spots on the chest, with which a shade of ashy brown gra- 

 dually mingles and overspreads the whole of the throat and chest ; 

 the rufous bars on the belly and thighs gradually become narrower, 

 and the bars on the wing disappear by degrees, leaving the inner 

 surface of the wing more or less uniformly rufous towards the base 

 of the quills. 



Hah. S.E. Brazil and Peru, 



J. J. Audubon, Esq. 



J. J. Audubon, Esq. 



Dr. Wucherer [C.]. 



Lord Stuart de Rothsay [P.]. 



Mr. Claussen 

 Mr. Claussen 



H. Whitely, Esq. [C.]. 

 H. Whitely, Esq. [C.]. 

 H. Whitely, Esq. [C.]. 



7. Asturina leucorrhoa. 



Falco leucorrhous, Quay et Gaim. Voy. rfe I'Uran. p. 91, pi. 13 



(1824). 

 Astur leucorrhous, Vigors, Zool. Journ. iii. p. 271 (1827) ; Gray, Geix. 



B. i. p. 27 (1849) ; Strickl. Orn. Syn. p. 120 (1855) ; Felz. Om. 



£ras. pp. 7, 398 (1871) ; Gray, Hand-l. B. i. p. 30 (1869). 

 Dsedalion leucorrhous. Less. Traite, p. 66 (1831). 

 Nisua leucorrhous, Cab. fy Tsch. Arch.f. Naturg. 1844, p. 265; iid. 



Faun. Peruan., Vdg. pp. 18, 103 (1844). 

 Asturina leucorrhoa, £p. Consp. i. p. 30 (1850) ; Srhl. Mtis. P.-B. 



Asturina3, p. 5 (1862); Scl. 8f Salv. P. Z. S. 1869, p. 134 ;'j iid. 



Nomencl. p. 118 (1873). 



Adult. Uniform black, the lower upper taU- coverts white, form- 

 ing a bar across the base of tail ; tail black, white at immediate 

 base, and crossed above by a single bar of ashy brown about one 

 third of the length of the tail from the tip, which also inclines to 

 ashy, the under surface of tail crossed with two distinct white bands ; 

 under surfece of body black, like the upper, the tibial plumes rufous ; 

 under tail-coverts huffy white ; under wing-coverts creamy buff, the 

 axillaries and lower coverts slightly spotted with black ; inner sur- 

 face of wing black, the primaries barred with white near the base, 

 the secondaries with ashy grey. Total length 14-5 inches, cuhnen 1, 

 wing 8-5, tail 6-5, tarsus 2-3. 



Adult female. Similar to the male, but a little larger. Total 

 length 15 inches, culmen I'l, wing 9, tail 6-7, tarsus 2-3. 



Youncf. Above dark brown, much mottled with rufous, the sca- 

 pulars and wing-coverts notched or barred as well as edged with 

 the latter colour ; quills pale creamy buff at base, shading into 

 rufous towards the tip, which is dark brown, the secondaries ex- 

 ternally dark brown, rufous on the inner web and at the tip, the 



VOL. I. « 



