The first two shots were taken on September 27, the bottom one on October 4 at the same location near Matthew's Lake. Although there were at least two individuals in the area it may be the same bird in all the shots. The eye colour would seem to indicate a juvenile male. I watched the pair dive-bomb what turned out to be a Peregrine Falcon although I wasn't aware of it while it was happening. Later as I was photographing the Falcon in a tree one dive-bombed it although I failed to capture the moment adequately. Later one dive-bombed a pair of juvenile Great Blue Herons in a tree but too far away for a decent picture.