98 



Wing 9 385-392 mm. ; plumage blacker ; 

 hind neck mottled buff instead of white ; 

 tail band narrower (40 mm.) ; bill rather 

 more slender ; secondaries chiefly rufous, 

 barred with black. 



163b.Urubitinga anthracina subtilis Thayer and Gorgona I., 



Bangs, Bull. Mus. Comp. Zool., xlvi., p. 94. S.W. Colombia 



(1905). [Gorgona I., type in M.C.Z., 



Harvard.] 



Gorgona Black Hawk. 



Wing (J 342 ; brownish black ; secondaries 

 rufous, barred and tipped with black ; tail 

 with white band 40 mm. and buff tips. 



163c. Urubitinga anthracina bangsi subsp. nov. Panama. 

 [$ San Miguel I., Pearl Is., Bay of Panama. 

 W. W. Brown, Jr., Mar. 30, 1904, type in 

 M.C.Z., Harvard.] 

 Pearl Island Black Hawk. 



Wing (J 365 mm. ; sooty black, browner 

 on wings ; primaries merely frosted with 

 white at base ; inner webs of secondaries 

 dull rufous, except at tips, barred and 

 mottled with black ; tail band 30 mm. 

 wide, the tip bufhsh. 



164. Urubitinga gundlachi (Cab.), J. f. 0., 1854, Cuba. 

 Suppl. p. Ixxx. [Cuba, type in BerUn Mus.] 

 Cuban Black Hawk. 



Wing $ 340-360 mm. ; dark chocolate 

 brown,; the wing-coverts, scapulars and 

 under parts narrowly edged with huffish 

 white or pale rufous ; basal half of 

 primaries slate grey on outer webs, the 

 inner webs white, forming a conspicuous 

 patch below ; secondaries uniform brownish 



