Thats what I presumed Nirofo when i saw a pair displaying in may last year at forest of dean from the elevated new fancy viewpoint. One of the pair lumbered slowly past the point at virtually eye level to the elevated position we were at, offering great views, whilst the other climbed to great height then power dived spectacularly.
I presumed the the bird flying slowly near us was the female, and the performing bird the male. The bird heigher up looked to be a smaller male whilst the bird nearby looked larger, but appreciating this can be deceptive.
However, my thoughts were thrown into confusion when the RSPB wardens there told me that the female performs & dives as frequently as the male.
I know it doesnt really matter but identifying gender and understanding what they are doing is important to me. Your summary - for which i thank you for - is the best i have seen to date....believe me i have asked this on a few threads now. And the time of year, and my perceived size difference, would confirm my original thoughts that the male was diving and the female passing slowly at lower height, on this occasion.
nirofo.
nirofo.