I've seen them.
You've seen them.
Everyone's seen them.
Yet recently, I started to wonder:
I have seen them in flight over sea, coast and river, over marshes, fields and mountains, from arctic tundra to desert coast.
I have seen them perched on tree, stone and sand bar, seen them sitting on ship, pole and birder's head.
I saw them dive into waves, deep seas and shallow estuaries, man made waters and white-raging rivers.
But I have never seen them swim.
Neither on sea, lake or river, and certainly never on a birder's head.
In life or on a photograph?