Long time no 'speak'..... I have been on a trip to Poland, to photograph sea eagles for a publicity project in order to promote eco tourism in this area. I had never photographed flying raptors before so I assumed this would be quite a challenge. Especially since I had to take the pictures on a small boat without stabilisation The eagles are so fast and very shy and you've just a split second to react. So my mission was to enjoy the week and manage to take at least one sharp shot where the eagles is in the frame. Both missions accomplished I guess....
I am asking you that question because I have seen in Skye Island in eastern Scotland... They take tourists on a boat and they throw fish behind it... Wild birds get used to be fed... I personnaly do not think it witnesses a wild behaviour.
But I know as well that sometimes, birds or other wild animals get used to the presence of humans arround and let them approch much more than other places.
Congratulation for the shot, The frame, the light is perfect, it even shows the marshland or forest behind !
And completely agree with you (I read the comments) : you cannot pretend being sure to obtain a sharp picture under 1/1600e seconds, and 2000 is even better. I have done peregrine falcons in flight and when I could, I was even 2500 or 3200.