A few weeks ago, the following pair of swans was swimming up and down Spring Lake, which should be renamed Swan Lake, at the Abbott Marshlands. They did not mind my walking along the shore and taking their pictures as they swam gracefully looking for plants to eat.
I was told that this pair are permanent residents of the area. They do not migrate to other places like other swans. They breed, raise their cygnets and those eventually fly away, unless they are killed by predators.