76 FALCONID^. 



Hah. Sparingly distributed througli central America from Southern 

 Mexico and Yucatan, throughout New Granada and the countries 

 south of the Orinoco, and all Brazil to Paraguay and Rio, not oc- 

 cuiTing in Western Amazonia. 



2. Micrastur mirandollei. 



Astm- mirandoUei, Schl. Neckrl. Tijdschr. i. p. 131 (1863) ; id. Mus. 



P.-B. Astures, p. 27 (1862). 

 Micrastur macrorhvnchus, Peh. Pets. Nov. Vog. p. 11 (1865, ex Natt. 



MS.) ; id. Orn. Bras. p. 7 (1871). 

 Micrastm- mirandollei, Scl. ^ Salv. P. Z. S. 1869, p. 8665 Gray, Hand-l. 



B. i. p. 31 (1869). 



Adult female (type of species). Above uniform clear slate-colour, 

 the fore part of the ear-coverts inclining to whitish at the base of 

 the plumes ; head darker slate-colour than the back ; quills brown, 

 barred above "with ashy brown and below with ashy white ; tail 

 black, tipped with ashy and crossed with three bands of ashy brown 

 above, whitish below, with an ill-defined line of white visible even 

 on upper sui-face ; entire under surface of body silky white, with a 

 very faint greyish lustre on the throat, and a few obsolete greyish 

 bars on the sides of the breast ; some of the flank-feathers with a 

 black shaft-stripe fading into white towards the tip ; under wing- 

 coverts white, the lower ones as well as the bases of the quills 

 broadly barred with black ; biU horn-black, yellow at base of both 

 mandibles ; feet yellowish. Total length 17"5 inches, culmen 1-25, 

 wing 9-8, tail 8-2, tarsus 2-9. {Mus. Lugd.) 



Hah. Amazonia and Guiana. 



3. Micrastur ruflcollis. 



Spai-vius ruflcollis, Vii-iU. N. Diet. d'Hist. Nat. x. p. 322 (1817) ; 



Pucker. Pec. et May. de Zool. 1850, p. 91. 

 Falco leucauchen, Teuim. PI. Col. i. pi. 36 (182-3). 

 Falco xantliothorax, Teinm. PL Col. i. pi. 92 (1824) ; Spic, Av. Bras. 



i. p. 19 (1824). 

 Astur xanthothorax, Vig. Zool. Joiirn. i. p. 338 (1824). 

 Nisus xanthothorax, Less. Man. d" Orn. i. p. 96 (1828) ; Schl. Mus. 



P.-B. Astm-es, p. 50 (1862). 

 Astiu" leucauchen, Less. Man. d'Orn. i. p. 94 (1828). 

 Nisus leucauchen, Less. Traite, p. 60 (1831). 

 Micrastur xanthothorax, Grai/, Cat.Accipifr.-p. 69 (1848); Cass. ProcT 



Phil. Ac. 1848, p. 88 ; Gray, Gen. B. 1. p. 28 (1849) ; B^y. Cvnsp. i. 



p. 30 (1850) ; Strickl. Orn. Syn. p. 122 (1855); Gray, Iland-l. B. 



i. p. 31 (1809) ; Scl. ^ Salv. P. Z. S. 1869, p. 366. 

 Micrastur leucauchen, Gray, Cat. Accipitr. 1848, p. 09; Cass. Pr. 



Phil. Acad. 1848, p. 88; StricJil Orn. Syn. p. 123 (1855); Gray, 



Hand-l. B. i. p. 31 (1869) ; Scl. ^^ S(dv. P. Z. S. 1809, p. 367. 



