Todd-Caeriker : Birds of Santa Marta Region, Colombia. 153 



This species was first recorded from this region by Sclater many 

 years ago, on the authority of Verreaux. It was recorded by Simons 

 also, while Mr. Smith sent in no less than seventeen specimens, all from 

 the coast region. For some unexplained reason Mr. Carriker failed 

 to meet with it in this pa;rt, or indeed anywhere except in the Rio 

 Rancheria-Rio Cesar Valley, where it was observed in small numbers 

 in July and August, 1920, at Rio Hacha, Arroya de Arenas, and 

 Valencia. A nest was secured by Mr. Smith's collectors at Bonda, 

 April 3. It is merely a platform of twigs, all nearly the same size, 

 and is about two feet in diameter. The single egg measures 61 X47> 

 and is pale bluish white, with spots and blotches of chocolate and 

 brown, chiefly about the larger end. 



44. Asturina nitida nitida (Latham). 



Asturina nitida Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, 129 (Bonda). 



Nineteen specimens : Bonda, Don Diego, Mamatoco, and Dibulla. 



There is some variation in adults, but none are quite so pale and 

 white below as the type of A. nitida pallida of Bolivia (cf. Proceedings 

 Biological Society of Washington, XXVIII, 1915, 170), the charac- 

 ters of which are the exact opposite of those of A. plagiata of Mexico 

 and Central America, which may also eventually prove to be con- 

 specific. The series of immature birds shows all the various stages 

 of the moult from the streaked young into the barred adult plumage. 

 They were taken at dates ranging from February 24 to April 22. 



The series collected by Mr. Smith came from Bonda and Don Diego. 

 The writer found the species fairly common at the latter locality, as 

 well as at Fundacion. It is a Tropical Zone bird, evidently regularly 

 found only in the heavier forest of the lowlands. 



45. Percnohierax leucorrhous (Quoy and Gaimard). 



Rupornis leucorrhoa Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, izg (El 

 Libano). 



A fine adult male of this hawk was received from Mr. Smith, col- 

 lected at El Libano, May 23, 1899. The species was described from 

 Brazil, and appears to be still rare in collections. The locality whence 

 it was procured in this region lies well within the Subtropical Zone. 



For the generic name used here see Ridgway, Smithsonian Miscel- 

 laneous Collections, LXXII, No. 4, 1920, 2. 



