I have been watching the swans behavior for a month or so.
They started by chasing all the Geese from the lake, then there were a lot of excursions on the shore. Finally a site for a nest was selected and the swans started building by decimating the greenery around the site. I spotted at least 4 eggs in the nest before Ode started laying on the eggs. Now…. I waiting for the eggs to hatch, sometime in the beginning of June.