It is amazing how some animals know when to be nervous and when to keep on eating. Clearly the video was done earlier in the year with everything green and the deer/elk in short horned velvet. ..... did I say that I really liked both videos. ..... I found it interesting, knowing that you were alone, that you obviously took a page from Les Stroud the Survivor Man. He frequently talked about filming alone and how difficult some sequences were. You stop, trudge ahead, set up the camera, back track, wander through the shot (or drive), go back and retrieve the camera hoping for a good angle and shot. Even driving that sort of thing takes time to do correctly.
Was that lake Erie you were swimming in?
Edit: Opps .... Just re-watched the last (swimming) segment, yep it was Lake Erie. Its certainly a big body of water.