Todd-Carriker : Birds of Santa Marta Region, Colombia. 387 



and most common in the foothills between 500 and 1,500 feet. Being 

 a forest bird, however, it avoids the coastal plain in the semi-arid 

 section, favoring more the north part, where the forest reaches the 

 beach. It is rarely seen far away from the banks of a small stream, 

 and the nest may even be suspended over the water. It is a long 

 pendant affair resembling that of Ostinops decumanus melanterus, ex- 

 cept that the entrance is a hole in one side well down towards the bot- 

 tom, instead of at the top as in Ostinops. 



350. Machetornis rixosa flavigularis Todd. 



Machetornis rixosa (not Tyrannus rixosus Vieillot) Allen, Bull. Am. Mus. 



Nat. Hist., XIII, 1900, 151 (Cacagualito). 

 Machetornis rixosa flavigularis Todd, Ann. Carnegie Mus., VIII, 1912, 210 



(Santa Marta region; crit.). 



Fifteen specimens: Bonda, Alamatoco, Don Diego, Fundacion, Tro- 

 jas de Cataca, Dibulla, Punto Caiman, and Rio Hacha. 



These are similar to a series from northern Venezuela, whence 

 came the type of this very distinct form, which evidently occupies all 

 of the northern part of South America. 



A widely distributed bird throughout the coastal plain section of 

 the Tropical Zone, and recorded also at Fonseca and Valencia, but no- 

 where abundant. It invariably occurs in pairs, and usually only one 

 pair to any given locality. It prefers pastures, the edges of lagoons, 

 or even the sea-beach, and is almost entirely terrestrial in its habits. 

 Individuals of this species have been noted taking ticks from cattle. 



351. Arundinicola leucocephala (Linnaeus). 



Eight specimens : Fundacion, Punto Caiman, and Trojas de Cataca. 



These agree with Venezuelan specimens. They are in more or less 

 worn breeding dress (August and September). 



This flycatcher was detected only along the coast of the Cienaga 

 Grande and in the adjacent lowlands. Invariably it was seen along 

 the edge of the water, either salt or fresh, preferring places where 

 shrubs or trees extended out beyond the edge. 



352. Fluvicola pica (Boddaert). 



Fluvicola pica Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, 151 (Cienaga). 



Additional records: Punto Caiman (Carriker). 



Nineteen specimens : Cienaga, Fundacion, Dibulla, and Trojas de 

 Cataca. 



