Please the read introduction text on this post first
(which also has some other useful info)
Weather was patchy sun and cloud with a strong wind, turning completely cloudy before 2.30pm when I saw it and it apparently is disappeared not too long after . I saw 1 male on 2 brief visits on the concrete ramp on the west side, but others reported definitely 2 with a possible 3rd.
It even landed for a minute at most. It seems to be struggling to settle without bing blow off by the wind!