JANUARY 30, 1902 VoL. III, 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 OUTRAM 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.' 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 
Arcé and recorded, or described as new, by Mr. Salvin in several 
papers that he published on Arcé’s collections, Mr. Brown did not 
meet with, while on the other hand Mr. Brown secured several 
birds that were not represented in Arcé’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 
1Qnacollection of birds made by W. W. Brown, Jr., at David and Divala, Chiriqui. The 
Auk, Vol. XVIII, pp. 355-370, Oct-, 1901. 
