Lorenz Imprinting Video

This video clip is actual footage of Konrad Lorenz with his imprinted geese. The silent clip shows Lorenz being followed by the geese on land and in the water. I would suggest starting the video at about the one minute mark.

For those who have access to YouTube go to http://www.youtube.com/watch?v=eqZmW7uIPW4&feature=related

For everyone else, go t0 the VidoMo version at http://www.vidoemo.com/yvideo.php?i=ZXFabVc3cWuRpdUlQVzQ&konrad-lorenz-imprinting=

At the beginning of the clip Lorenz is speaking through a megaphone. I am at a loss as to what Lorenz is doing. If anyone knows please leave a comment below.