Big Foot - AKA Common Loon.
This one was showing me why it could dive and come up at the other end of the lake so easily. Those webbed feet are huge! When they get in that mode I usually just wait them out. They get curious and head back to see what I am doing. If that doesn't work then its row,row, row.......... and row some more!
Good upper body exercise!
Camera Settings; f/5 .6 - 1/500 - 560mm - ISO 200