status of birds and mammals in areas farther off shore. This statement is 
based on the results of previous EAC Cruises during which it has been noted 
that coastal and pelagic bird populations are not similar in terms of 
specific composition, densities, and seasonal fluctuations. Plans call for 
the next two cruises to be in the same area, however no Smithsonian observer 
will be on board. 
The survey area of this cruise included three main regions (see map). 
However, due to an error in recording positions, no position in the area 
surveyed on 5 June is considered reliable within 25 miles. All other 
positions are reliable within five miles. 
Within each area there was considerable duplication of observations 
as the ship frequently went back and forch along the same transect line. 
No allowance has been made for this in any of the tables. Eurther 
complications in consistency of method aLso arose due to the frequent 
course-changes and speed changes throughout most of the survey. It is 
quite probable that at speeds exceeding ten knots the efficiency of 
observations declines and of course the resulting calculations would tend 
to be inaccurate relative to observations made at slow speeds. 
Jaegers and Skua 
One lone-tailed Jaeger was seen off Santa Cruz Island. Three positive¬ 
ly identified Skuas were seen in the same general area. 
Alcid 
Low numbers of Rhinoceros Auklets were recorded in the vicinity of the 
Channel Islands. Three sightings were of two birds together, and one was 
of a single bird. 
Three unidentified small alcids seen on the 8th were prooably Cassirfs 
Auklets. 
Marine Mammals 
Unidentified seals (probably sea lions) were seen commonly in waters 
off the Channel Islands. 
Sixteen Baird*s Dolphin were seen off the Mexican - U.S. border and 
three were seen southeast of San Clement e Island. 
Dali Porpoise were seen on three occasions in the vicinity of the 
Channel Islands. On one sighting three individuals were estimated to be 
travelling in excess of 20 knots. 
Two pods of Pilot Whales were seen during the survey. One group of 
about forty was seen heading southeast off the U.S. - Mexican border and 
another group of 20 was seen off San Nicolas Island. 
One unidentified whale was seen on 7 June. 
