T fn it e- tailed Tropicbird ( Phaethon lepturus ) 
Of the five birds recorded this month Wo were within the grid 
area. One specimen ms collected. 
Blue-faced Booby ( Sula dactylatra ) 
The 9 individuals recorded on this trip were primarily found 
along the Leeward Chain is la nds. None were within the grid area and 
only one was found between Oahu and Johnston Island. This represents 
a continuous reduction in numbers since March. One specimen was collected. 
Red-footed Booby ( Sula sula ) 
Of the 18 individuals recorded only one ms within the grid area 
and three were found between Oahu and Johnston Island. No specimens 
were collected. 
Brown Booby ( Sula leucogaster ) 
One bird near Oahu and three near French Frigate Shoals were 
the only individuals of this species recorded. No specimens were 
collected. 
Great Frigatebird ( Fregata minor ) 
A total of 18 birds were recorded between Oahu and Johnston Island 
and 3^ along the Leeward Island Chain, but none were observed within 
the grid area. One specimen was collected. 
Sooty Tern ( Sterna fuscata ) 
Between Oahu and Johnston Island 1,692 individuals were observed 
while 361 individuals were found within the grid area. On the return 
trip along the Leeward Islands this species was very abundant and at times 
inpossible to count. Red- tagged birds were again observed within the 
study area, but only one was within the grid area proper (see table IF). 
16 specimens were collected. 
