Anna Pavlova and Fyodor Chaliapin Feeding Swans at Ivy House

This is footage of Anna Pavlova and the great Russian bass, Fyodor Chaliapin, feeding swans at the lakeside in the garden of her home, Ivy House, at Golders Green. The two are initially seen feeding the swans at the water s edge and then walking away from the lake and towards the movie camera. I wonder if one of the swans is the famous Jack, with whom Pavlova was so photographed