It was definitely another osprey. I saw all three on the nest at the same time.
Just had another look at the video captures from Friday morning from 11 to12.30. Had watched them after I heard the third osprey calling but looked closer frame by frame tonight. Did I read somewhere that Henry had a metal leg ring? If so might have caught it, so if the 'Henry experts' could have a look at this that would be good. This nest landing was momentary so well spotted Tiger if you saw this one.
I'll try to post a sequence of 5 frames:
- Starting with both birds alert about 11am.
- Then a shot of two birds on the nest at 11.48.
- Two legs appeared top left so then 3 ospreys visible on the nest - but the new bird very close to the camera so no clear full head shot.
- A few frames later there appeared to be a metal ring on this new bird's right leg. When it flew off only one bird left on the nest, which was what confused me before.
- a final shot of EJ/OVS still guarding the nest at 12.22
Interested to hear what you think - thanks.