SHIPBOARD SURVEYS OF MARINE BIRDS 19 



Code 19. Zone (60) 



= Bird within count zone (= transect width) 



1 = Ship follower 



2 = Bird seen outside of count zone during a transect 



3 = Bird seen within one-half hour before or after a transect or survey 



4 = Bird on or over land during a transect or survey 



5 = Bird on or over land before or after a transect or survey 



6 = Bird found on ship before or after a transect or survey 



7 = Dead on water 



