When photographing birds on or near water I immediately think of reflections.
If there is a reflection then try to include it in your shot. They can dramatically improve an image because they add interest.
It’s so easy not to even notice when there’s an amazing reflection. I’ve seen so many shots where it was missed, resulting in a shot with only a small part of the reflection in the frame – what a shame!!
If there is no wind and the water is still, you can get some amazingly clear reflections.