Additions to the Bird Collections 89 



headquarters of the South American Development Company, 

 where their work has been materially advanced by the coopera- 

 tion of this company. From Portovelo they have explored the 

 country to the west, north, south, and east, and have not only 

 secured large collections, but much valuable information con- 

 cerning the character of the country and the southward limits 

 of the Humid Zone in southwestern Ecuador. In October, 

 Mr. Anthony reported that 1,200 birds and 600 mammals had 

 already been secured, and if they meet with equal success 

 during the remaining four months of their stay, they will have 

 obtained one of the largest collections ever made in Tropical 

 America in the same length of time. 



Mr. Harry Watkins has continued to represent the Museum 

 in Peru. His collections have been made on the eastern slope 



of the Andes, in the Perene region, and in west- 

 Peruvian ern p eru f rom Lima to the Chilean boundary. 

 Expedition 



Our collections from western Peru are now 



essentially complete and will permit us to define the life-zones 

 of that region. 



While studying the aquatic bird-life of the tableland in Peru 

 and Bolivia, Lord William Percy, field representative of the 

 wa .. Museum, made for us a representative collection 



Percy at Guaqui in Bolivia, a place from which here- 



Expedition tofore we had received no specimens. 



In addition to the specimens received from our field expedi- 

 tions, our collections have been greatly enriched through dona- 

 tions and exchanges from various sources. Of 

 Additions these by far the most important is a gift from 

 Collection Mr. Frederick F. Brewster of 3,378 specimens 

 collected by Mr. Rollo H. Beck in South America 

 and the West Indies, the greater part of which represent 

 species new to our collection. This is the most valuable dona- 

 tion the Department of Birds has ever received. 



The completion of our Bulletin on the Distribution of Bird- 

 Life in Colombia enables us to offer for exchange the duplicate 

 material contained in that collection, and in return for this 



