We also walked around Herdsman Lake in Perth a few days back, and stopped to admire this pair of Black Swans. They appeared to be doing a courtship ritual, raising their heads high in the air and honking in unison.
There were also plenty of ducks, including Pacific Black Ducks. They are the most common ducks in parks and lakes around Perth, but look quite cute relaxing in the sunshine with their ducklings, or swimming on the lake.
Other species of ducks at the lake included these two Hardheads.