14 



*24. Ibycter americanus americanus (Bodd.), 

 Tabl. PI. Enl.. p. 25 (1783). [Cayenne.-] 

 Red-throated Caracara. 



Wing <? 335-59, ? 355-60 mm. ; plumage 

 black with greenish reflections, but abdo- 

 men white ; face and throat deep red. 



Tropical S. 

 America from 

 Panama to the 

 Guianas, Brazil, 

 Ecuador and 

 Peru. 



*24a. Ibycter americanus guatemalensis subsp. nov. Guatemala 



[ad. ? ? Guatemala, T. C. Eyton coll., in coll. and Central 



H. Kirke Swann, wing 390 mm.] America. 

 Northern Red-throated Caracara. 



Larger, with longer wings and tail ; wing ^ 

 (B.M. Guatemala examples) 376-82 ; ? 385-90. 



25. Ibycter megalopterus (Meyen), Nov. Act. S. America, 

 Cses., xvi., Suppl., i., p. 64, pi. 7 (1834). Pacific side of 

 [Chile.] Andes. 

 Mountain Caracara. 



Wing ad. 370 mm. ; plumage black with 

 greenish reflections, but upper tail coverts, 

 base and tip of tail and abdomen white. 



26. Ibycter albigtilarisalbigularis(Govild), F.Z.S., Patagonia. 

 1837, p. 9. [Santa Cruz, type in Brit. Mus.] 

 White-throated Caracara. 



Wing ad. 395 mm. ; above brownish black ; 

 upper tail-coverts, base and tip of tail and 

 entire under parts white ; sides irregularly 

 marked with black. 



27. Ibycter albigularis circumcinctus Scott, Auk, 

 xxvii., 1910, p. 152. [Chubid, Patagonia.] 

 Scott's Caracara. 



Wing <J 410 mm. ; plumage black ; rump, 

 upper tail-coverts and base and terminal 

 band on tail white ; below white with a 

 variable band of black across lower throat. 



Patagonia, 

 E. of Andes. 



