368 Peters, B ( ittona Roo, M( l.iuiy 



The type of country covered during the entire tour months was 

 all very much the same, which in a waj accounts for the compara- 

 tively small number of species secured. It may be rough!) divided 

 in t o two i_\ pes; t he ri\ er and the bush, 



The river type consists of the roM of mangroves bordering tin* 

 river, and the open savannas, covered with water during the rainy 

 season. The bush type is composed of the moisl tropical jungle 

 which often joins the river. 



birds typical of the river and open places were several species 

 of Herons, Killdeer, Spot toil Sandpiper, Ground Doves (ChamepeUa 

 rvfiperwis ntflpmnis) Kingfishers, particularly the Texas Kmc- 

 fisher, Couch's Kingbird* Derb) Flycatcher and Pork-tailed Ply- 

 catcher. 



The more characteristic birds of the bush wore the Chachalacas, 

 Parrots, many of species undetermined, Cuckoos (Piaya cayana 

 ikermopkHa), Woodhewers, several species oi Wrens, Jays {PsUo- 

 rkmvs) and Ant Tanagers. 



The region is characteriied by an almost complete absence oi 

 marked topographic features. There are no real hills, but instead 

 a series oi low limestone videos, running north and south becoming 

 higher as one ascends tho river. The maximum elevation at 

 JCcopen could not have boon much over 200 feel above sea level. 



Tho climate consists of tho usual wet and dry season. Tho former 

 extending from June to November; tho latter comprising tho rest 

 of tho year. Sudden heavy downpours may ho expected at most 

 any time during tho dry season however, 



Tho temperature during our stay was for tho most part quite 

 agreeable, only occasionally going above 90' F, during tho day. 

 and seldom exceeding 80°. The coldest night was 49°, 



colors of birds in descriptions are from EUdgway's Nomenclature 

 of Colors, edition oi 1886, All measurements are in millimeters, 



1 wish to extend in heartiest thanks to the Mengel Co, for their 

 generous hospitality and assistance during the lone time that 1 



was at their camp. 



I also take this opportunity to thank Mr. Ontram bancs of the 



Museum of Comparative Zoology for much valuable advice and 

 assistance, for without his constant aid this list would not have 



been possible. 



