3 
1964. Birds appear to have a varied diet. Cephalopod beaks were found in 90$ 
of the stomachs examined, however the number was never greater than 11. A wide 
assortment of arthropods mites, halobates, amphipods, ostracods, and copepods- 
were found. In addition an occasional parasitic copepod was found in the stomach 
debris. In most cases the stomach contents were 75% to 100$ digested. 
PUFFINUS: 
In the eight instances where species Puffinus was examined cephalopod beaks 
and algal remains were found, while occasionally fish and squid were also noted. 
Crustaceans were not usually found, although fragments and a few copepods were 
found. The specimens were captured on Christmas Island or in the locations of: 
7° 52* N 161° 25 f W or 6° 51 f N 161° 36 ! W. 
PTER0DR0MA: 
Most of the five specimens examined were captured on Christmas Island. 
In all these specimens cephalopod beaks were found, the number of which ranged 
between six: and forty-five. In addition to the beaks, remains of algal-like 
plants were also found. Crustaceans were not usually found, but occasionally 
a mite was isolated in the debris. 
GTGI3 ALBA: 
Five stomachs of this species were examined, and in all cases the contents 
were completely digested and on examination of the debris, no organisms were 
found. However, one specimen had a green stomach lining, thus giving an indication 
that algae had been eaten. 
TROPIC BIRDS: 
The eleven stomachs examined were all collected between the period of 
