Vot. II, Pt. 11] GIFFORD—BIRDS OF THE GALAPAGOS ISLANDS 249 
20 were young ones, some in striped plumage. The adults had 
only medium-sized reproductive organs at that time. 
32. Camarhynchus pauper: SMALL-BILLED TREE FINCH 
Charles Island. 
With the exception of three birds taken in the arid region in 
the vicinity of Cormorant Bay, two in October, one in May, 
and two taken near the beach at Black Beach Roads, on May 
26, all of the specimens were seen above 1000 feet elevation 
in the country tapped by the old wagon road back of Black 
Reach Roads. It was not a common bird compared to the 
Sooty Ground Finch or the Sturdy Ground Finch. About 
100 specimens were taken, nearly all from the interior 
basin of the island, only one or two being taken below the 
divide on the western slope. The interior region of Charles is 
in the humid belt, possessing two perpetual springs, the great 
rendezvous of the small land birds. The greater part of this 
region is overrun by lemon and orange trees, although here 
and there are patches of strictly native vegetation, in which are 
seen small Scalesia. 
Like all of the Tree Finches, this species is very agile in 
getting about trees and bushes after food. and like others of the 
genus, often hangs head downwards. We found that they 
feed almost entirely in the orange trees, which are introduced, 
eating the pulp of the fruit. They were shot with their gullets 
full of it. One or two I took in Scalesia trees. Near the shore 
at Black Beach Roads, two were seen feeding in thorn bushes 
and hanging head downwards at times. One was seen in a 
tropical plum tree. On June 1, on the west slope of the island, 
one was seen eating the red berries of a Bursera tree, and at 
still another time one was noted feeding in some mistletoe 
growing on a Scalesia. One individual was seen feeding in 
a small shrub by the roadside and another on an orange on 
the ground. 
Their song is very distinctive, being readily distinguished 
from that of the Black-headed Tree Finch, as well as from 
those of the other finches. In early March they were heard 
singing, while in latter May all song had ceased. They usually 
fed singly and in company with no other species. Cats and rats 
are probably their only introduced natural enemies. 
