Todd-Carriker: Birds of Santa Marta Region, Colombia. 157 



49. Spizaetus ornatus (Daudin). 

 One specimen : Bonda. 



A fine female, shot at Bonda, March 13, 1899, constitutes the only 

 record for this region up to date. The species is known to have an 

 extensive distribution in South and Central America. 



50. Spizaetus tyrannus (Wied). 

 One specimen : Bonda. 



This example was shot March 12, 1899. It is an adult female in 

 full plumage. Like 5". ornatus, this species is found throughout trop- 

 ical South America, north to Guatemala in Central America. It has 

 been suggested by Messrs. F. P. and A. P. Penard (Vogcls van 

 Guyana, I, 1908, 415) that possibly this is merely a melanistic phase 

 of S. ornatus, but our specimens do not support such a view. 5". tyran- 

 nus has a relatively as well as absolutely longer wing than S. ornatus, 

 while its tibiae and tarsus are much shorter. 



51. Oroaetus isidori (Des Murs). 



Lophotriorchis isidorii Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, 130 

 (Bonda). 



One specimen : Las Nubes. 



On the use of the generic name here adopted consult Ridgway, 

 Smithsonian Miscellaneous Collections, LXXII, No. 4, 1920, 1. 



Two specimens of this fine large hawk were received from Mr. 

 Smith, an adult female shot at Bonda, May 27, 1898? (or 1899), and 

 an immature specimen from Las Nubes, December 21, 1899. It ap- 

 pears to have an extensive altitudinal range, being recorded by Dr. 

 Chapman {Bulletin American Museum of Natural History, XXXVI, 

 1917, 248) from the Western Andes at 11,000 feet. 



Family FALCONID^. Caracaras. 



52. Herpetotheres cachinnans cachinnans (Linnaeus). 



Herpetothcres cachinnans Sclater, Proc. Zool. Soc. London, 1855, 134 



("Santa Marta"). — Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, 131 



(Bonda). 

 Herpetotheres cachinnans cachinnans Chapman, Bull. Am. Mus. Nat. Hist., 



XXXIV, 1915, 638, in text (Santa Marta [region] ; crit.). 

 Herpetotheres cachinnans fulvescens (not of Chapman) Apolinar Maria, Bol. 



Soc. Cien. Nat. Inst. La Salle, IV, 1916, 38 ("Santa Marta," in range). 



