56 



iSuuiller ; luucb paler (smoke grey) above ; 

 slightly paler below. 

 158c. Rwpornis magnirostris cons2)ecia, Peters, Auk, 

 1913, p. 370 [Sa7i Ignacio.] 



Tail with the interspaces rufous instead of 

 ashj'' ; below buff banded with rufous, throat 

 and chest ashy. 

 158d. Rupornis magnirostris ruficauda (Scl. & Sal v.), 

 P.Z.S., 1869, p. 133 [Type loc. sugg. David, 

 W. Panama, Chapm.]. 

 Red-tailed Hawk. 



Insular race. 

 158e. Rwpornis magnirostris gracilis Ridgw.. Pr. 

 U.S.N. Mus., viii., p. 94 (1885). [Coztimell.] 



Yucatan 

 Peninsula. 



Central 

 America 

 (S. Nicaragua 

 to Panama.) 



Cozumel 

 I. Yucatan. 



Length 9 14.50, wing 10 in. ; tail dark brown 

 imperfectly banded with Avhite and shaded 

 with dull rufous ; below dark rufous narrowly 

 banded with white. 

 158f. Rwpornis magnirostris ridgwayi (-ory, Auk, i., 

 p. 4 (1884). \8. Domingo]'. 



Larger ; above brown, darker on head ; quills 

 paler rufous than in R. m. ruficauda,3b\\(\ with 

 bases jaale rufous externally ; tail pale rufous 

 banded with dark brown ; below buffy- white, 

 very narrowly and indistinctly barred with 

 pale rufous. 

 158g. Rupornis magnirostris ]nicherani, J. & E. Verr. 

 Rev. et Mag. de Zool., 1855, p. 350 [type loc. 

 sugg. Paraguay, Brab. & Chubb.] 



Above ashy brown, head much clearer ; tail 

 with the interspaces ashy-brown ; throat 

 ashy-gre}' ; chest jiale rufous, rest of under 

 parts fulvous barred with pale rufous. 

 158h. Rupornis maqnirosfris nattereri (Scl. & 



Salv.) P.Z.S.' 1869, p. 132. [Sao Paulo et 



Mattogrosso.] 



Natterer's Hawk, 



Uniform black, lower upper tail -coverts and 

 base of tail white ; tail black, with a single 

 band of ashy-brown : tibial plumes rufous ; 

 under tail -coverts buffv- white. 



Haiti and S. 

 S. Boraiugo. 



Paraguay, 

 S.E. Brazil, 

 Bolivia, 

 Argentina. 



S.E. & C. 

 Brazil. 



