January 30, 1902 Vol. Ill, pp. 15-70 



PROCEEDINGS 



OF THE 



NEW ENGLAND ZOOLOGICAL CLUB 



ON A SECOND COLLECTION OF BIRDS MADE IN 

 CHIRIQUI, BY W. W. BROWN, JR. 



BY OUTRAN! BANGS. 



The present paper takes up Mr. Brown's bird-collecting in 

 Chiriqui at the point where I left it in a paper lately published 

 upon the work he did at David and Divala. J The period covered 

 is from January to August, 1901, and the collection is a very large 

 one, including a large proportion of the birds known to occur in 

 this highly interesting region. Some species that were taken by 

 Arce and recorded, or described as new, by Mr. Salvin in several 

 papers that he published on Arce's collections, Mr. Brown did not 

 meet with, while on the other hand Mr. Brown secured several 

 birds that were not represented in Arce's material. Bird-collect- 

 ing in tropical America is a fine art ; and in order to make a nearly 

 complete collection of the birds of any region a collector must 

 remain at each station through the various seasons of the year. 

 For although, strictly speaking, the birds are non-migratory, at 

 certain seasons certain species can be got with ease in any num- 

 ber, while at other seasons not one individual of them can be 

 found. The ripening of certain fruits, the blossoming of flowers, 

 and the presence or absence of ants and other insects, all have 

 the greatest effect upon the movements of the birds ; and it is 



1 On a collection of birds made by W. W. Brown, Jr., at David and Divala, Chiriqui. The 

 Auk, Vol. XVIII, pp. 355-370, Oct., 1901. 



