Thanks Chad - Male is the top bird and female bottom bird. I got myself into the right position but thought they would never have the same HA. Then as you suggest there was another falcon behind me to the right. They both looked at it and I went click, click, click - the male - topbird - soon took off.
Neat. I love the double good HAs, and the hint of cloud is nice. Perch looks nice. Not sure if this is already cropped or not, but I'd love to see about half the bottom space cropped away