Todd-Carrikee : BiRbs of Santa Marta Region, Colombia. 5 



been completely gone over and the Santa Marta records collated in 

 the effort to give a full summary of our present knowledge of each 

 species, so far as this particular region is concerned. The work of 

 identifying and reporting upon the collection has been greatly facili- 

 tated by the high quality of the specimens themselves, and by the cir- 

 cumstance that the Carnegie Museum possesses an unusually fine 

 series of the birds of the Eastern Andes of Colombia and the moun- 

 tains of Venezuela, which specimens have naturally been very im- 

 portant for purposes of comparison. 



The senior author is responsible for that part of the report which is 

 of a technical nature, namely, the compilation of the references and 

 bibliography, the identification and listing of the specimens, the critical 

 notes under each species (including the entire treatment of such as 

 were not found by Mr. Carriker), and the theoretical discussion of 

 the life-zones. The historical chapters are also nearly all his work. 

 To him also have 'fallen the main labor of composition and revision 

 of the manuscript, and the incorporation of much additional matter 

 from various sources not accessible to the junior author. Mr. Carriker 

 has contributed the notes on the habits and local distribution under 

 each species (usually paragraphed separately), the general description 

 of the region (in part)', the account of his explorations in the field, 

 the descriptive list of localities (in part), and the preliminary descrip- 

 tive discussion of the life-zones. Eash author, however, has examined 

 and checked the work of the other, so that it is hoped that few inac- 

 curacies or inconsistencies have escaped notice. 



For our knowledge of the geography of this region we are maini> 

 indebted to the researches of the late Frederic A. A. Simons, whose 

 two papers ■■■ on this subject have been of great service in the prepara- 

 tion of the present report, and also to the work of Dr. Wilhelm 

 Sievers, whose article on " Die Sierra Nevada de Santa Marta und die 

 Sierra de Perija " ^ is even more valuable. We have to thank Dr. 

 Arnold E. Ortmann and Dr. Otto E. Jennings of the Carnegie Museum 



1 Simons, F. A. A., " Notes on the Topography of the Sierra Nevada of 

 Santa Marta, U. S. Colombia," Proceedings Royal Geographical Society, 

 I, November, 1879, 689-701, one map. — " On the Sierra Nevada of Santa 

 Marta and its Watershed (State of Magdalena, U. S. of Colombia)," Proceed- 

 ings Royal Geographical Society, III, December, 1881, 705-723, one map. 



2 Sievers, Wilhelm. Zeitschrift der Gesellschaft fiir Erdkunde su Berlin, 

 XXIII, 1888, 1-158, two maps. 



