difficult to see than birds in uncalm s as, uhoy may have been even mere, abun¬ 
dant than observations suggested. As : > net hod of weighting which -I - for 
the sx,aoe of the sea has been devised, at is unreasonable to calculate comparative 
densities. Thus suffice it to say that there were many mammals seen, and proba¬ 
bly more were unnoticed. 
A total of forty-one bathythermogra >h casts was made over the grid trad 
nt four hour intervals. No analysis of these has yet been made. 
FLOCKING 
« 
As on previous cruises, very little flocking was noticed in the grid except 
for Red Phalaropes and storm petrels. Flocking of these two species will be 
discussed in the grid speeies accounts. 
GRID SPECIES ACCOUNTS 
■ Black-footed Albatross ( Diomedea nigrines ) 5 ^ + 1 nocturnal 
Overall grid density was identical to that found on the last survey, and 
a north to south density decline was again observed. But east—west distriouw^Oi. 
was noticeably different, there being four times as great a density in tne eas« 
than in the west* On previous surveys east-west distribution has been virtually 
even. k 
BuriniQ this survey an effort was made to make note of any birds wnich had 
a white rump (indicative of adult plumage), but only one was seen* ihis would 
population . , 
suggest that few, if any, of the 1967 Hawaiian nesting A have yet returned to tnis 
area* 
Fulmar ( Fulmarus glacialis ) 4 
The low numbers indicate that the grid winter population has migrated north. 
It is to be expected that a few stragglers will remain behind* All four sightings 
were of dark phase birds. 
