In 2010 John joined the Mackenzie River Peregrine survey for the Northwest Territories. They surveyed nesting peregrines on the Mackenzie River going from Hay River across Great Slave Lake down the Mackenzie to Inuvik and back up river to Wrigley. A trip that was about 3,000 km and took just over a month. Note this video is 1 hour and 10 minutes or you can watch in shorter sections listed below the video.
Or the whole video (1hr 10 min.).
Mackenzie River Peregrine Survey 2010.