I was watching, from a distance, a pair of Canada Geese with four goslings near a mother swan with five cygnets. They were on the bank while the male swan was on the water some way away.

The geese came closer and closer to the swans and just before reaching the swans, the geese got into the water.

It was at that point that the male swan came towards them looking like a a war galleon from the Spanish Armada, and attacked the first defending adult goose a number of times. The swan did not attack the goslings, and the mother swan did not get involved in the conflict.

The geese and goslings then went back onto land, and after that the male swan ignored them.

The female swan took the cygnets out on the water and brought up water weed which she strew in the way of the cygnets to feed.

After feeding for a few minutes, the swan family then swam away under Abingdon Bridge.