On this particular morning the conditions were very good - a crystal clear sky with a good view of the mountains in the background, fog, some soft sunlight, and a lot of swan activity. We got flocks flying low over our heads, fly-by's, landings, take-offs, wing flapping and dancing.
What I like about this shot are the different activities all in one image; sitting, sleeping, flying, landing and calling (the one on the far right in the distance).