The following species were considered rare or accidental in terns of 
small populations or extra limital occurrence; 
Dark-rumped Petrels k 
Bonin Island Petrels 3 
Cookilaria sp. 2 
Long-tailed Jaeger • 1 
Arctic Terns 6 
Red ? Phalaropes 2 
House Sparrow 1 
Species Account 
Black-footed Albatross Diomedea nigripes 
Date April 11 12 13 14 15 l6 17 18 19 20 21 22 23 
Max. No. in one 
Observation 5 10 8 15 50 67 848525 
2 PM Sea water 
Temperature 24.4 22.8 22.2 20.0 20.0 19.8 18.3 l6.2 15.1 12.9 11.7 10.0 09.4 
Observed every day of the cruise. Numbers built to a peak on 15 April 
and then dropped to a low but fairly constant level across the Pacific. The 
peak on 15 April may be partially explained in two ways. First, one half of 
the birds observed on this date were following the U.S.S. Paul Revere with 
which the Granville Hall rendezvoused. During 15 April the Granville Hall 's 
course was southwesterly. It might be assumed that albatrosses were more 
attracted to a ship which was headed toward their breeding islands than away 
from them during the breeding season. 
Prior to 15 April maximum numbers were observed during the afternoon, 
while after 15 April the highest number for the day was seen in the morning. 
Laysan Albatross Diomedea immutabilis 
April _ 11 12 13 14 15 1 6 17 18 19 20 21 22 23 
Max. No. at one 
observation 0212513100100 
