Bob Tagge in America

As some already know, around 1974 Bob Tagge spent some time in America to count and describe native birds. Bob suspected that fundamental flaws were made in classifying the living species of the New World and indeed he succeeded in putting things right.
During this trip he captured birds on hundreds of hours of tape and 16mm film. 834 bird species have been recorded, but inbetween some shots are made of the surroundings and of the crew at work. And to the surprise of many, by accident, Bob himself was captured for about 10 seconds. These are the only 10 seconds of film in which Bob Tagge is to be seen!