When interrupted from sleep/rest, these Swans, immediately, began to honk/talk and strtech their wings. Everybody in the tribe began and ended this together. Sometimes, they swim off, sometimes they fly off and sometimes they go back to sleep. Whatever they do, everyone in the tribe, immediately, knows and reacts. They were reacting to me. Some Swan families swam away and some (most) went back to sleep/rest. I felt good about this thought.
(c)Michael Wigle