58 



162. Urubitinga urubitinga urubitinga (Gmel.), 

 S.N. i., p. 265 (1788). [Brazil.] 

 Brazilian Eagle. 



Under wing-coverts and tibiae with more 

 white ; tail with less white and an extra 

 black bar. 

 162a. Urubitinga urubitinga ridgwayi Gurney, 

 List Diurn. Bds. Prey, p. 77, 148 (1884). 

 [Guatemala.'] 

 liidgway's Black Hawk. 



162 b. Urubitinga urubitinga subtilis Thayer and 

 Bangs, Bull. Mus. Harvard, xlvi. p. 94. 

 (1905). [Gorgona I.] 

 Gorgon a Black Hawk. 



Black above and below ; upper and under tail- 

 coverts narrowly tipped with white ; tail 

 with a broad white median band and white 

 tip. 

 163. Urubitinga anthracina anthracina (Licht.), 

 Preis. Verz. ; Vogel, Mexico, etc., p. 3 (1830). 

 [Mexico.] 

 Mexican Black Hawk. 



Doubtful form ; said to be dark chocolate 

 brown with 2 more or less distinct extra 

 white bands at base of tail. 

 163a Urubitinga anthracina gundlachii Cab., J. 

 f.O. (1854). [Cuba.] 

 Cuban Black Hawk. 



Chile, 

 Argentina, 

 Paraguay, 

 E. Peru, 

 Brazil, 

 Venezuela, 

 Guiana, 

 C. America 

 to Costa Rica 



Guatemala 

 and Mexico. 



S.W. 

 Colombia. 



Tropical 

 America to 

 W. Indies, 

 Guatemala, 

 Mexico and 

 Arizona. 



Cuba. 



Gen. XXXIX. LEUCOPTERNIS Kaup (1847). 



Similar in structure to Urubitinga ; nostril nearly 

 circular ; tarsus not more than twice as long 

 as middle toe ; plumage usually more white than 

 black. 



Plumage uniform bluish slate colour ; tail 

 black, with a white median band and white 

 tip. 



