Ridgway.] 78 [May 21, 



Hdb. Northern South America, Eastern Peru (Sclater and Salvin) ; 

 Brazil (Mus. Philad. Acad, and Boston Soc.) ; Rio Negro and 

 Rio Brancho (Scl. and Salv.) ; Panama (Cab. G. N. Lawrence). 



3. Micrastur ruficollis (Vieillot). 

 Sparvius ruficollis Vieill., N. D., x-, 322, 1817 (rufescent phase). — Id. 



Enc. Meth. in, 1263. — Pucher., R. Zool. 1850, 91. 

 Micrastur ruficollis Strickl., Orn. Syn., i, 1855, 122. — Scl. and Salv. 



P. Z. S., 1869, 366. — Gray, Hand List, I, 31, no. 292. 

 Sparvius gilvicollis Vieill., Nouv. Diet, x, 1817, 323 (grayish phase.) 



— Id. Enc. Meth. in, 1264. — Pucher., Rev. Zool. 1850, 91. 

 Micrastur gilvicollis Pelz., Orn. Nov. 1865, 10 (Diagnosis, corrected 



synonomy, and remarks). — Id. Orn. Bras., 399. 

 Falco xanthothorax Spix., Av. Bras. I, 1824, 19 (rufescent phase). 



— Temm., PI. Col., 92. 



Astur xanthothorax Vig., Zool. J. I, 338. — Steph., Zool. xm, 



pt. 2, 27. 

 Nisus xanthothorax Less., Man. Orn. I, 96. — Id. Tr. Orn., 58. — 



Cuv., Reg. An., ed. 2, 334. 

 Accipiter xanthothorax Gray, List B. Brit. Mus., 69. — Cass., P. A. 



N. S. 1848, 88. 

 Micrastur xanthothorax Gray, Gen. B. fol., sp. 2. — Bonap., Consp. 



I? 30.— Pelz., Orn. Bras., 399. 

 Herpetotheres xanthothorax Kaup, Monog. Falc. in Contr. Orn. 1850, 



71.— Pelz., Orn. Nov. 1850, 12. 

 Falco trifasciatus Natterer, Cat. Msc, no. 954. (Pelzeln). 

 Climacocercus concentricus , juv. Cabanis, Tschudi, Fauna Per., 99 



(not Falco concentricus of Illiger!). 

 Falco concentricus Puch., Rev. Zool. 1850, 91, (not F. concentricus 



of Illiger!). 

 Micrastur guerilla Cass., P. A. N. S. Philad. 1848, 87 (young plum- 

 age). — Gray, Gen. B., fol., sp. 4. — Id. Hand List, I, 31, no. 



296. — Bonap., Consp. i, 30. — Pelz., Orn. Nov. 1850, 12. 



— Scl. and Salv., P. Z. S. 1869, 367. 

 Climacocercus zonothorax Cab., Journ fur Orn. 1865, 406. 

 Micrastur zonothorax Scl. and Salv., P. Z. S. 1869, 253, and 366. 



— Gray, Hand List, i, 31, no. 297. 



Micrastur leucauchen Scl. and Salv., P. Z. S. 1869, 36 7 (excl. syn- 

 onomy). 



