Bird Watching: More birds from Down Under Volume 2, 1 by MargaretK

MargaretK wrote:
Whilst I was at the Ospreys nest three days ago, a really large bird way off in the distance caught my eye. It's got me stumped as to what it is. It had a slow, easy flight and its neck remained outstretched the whole time I had it in sight. This was taken from probably 2km away. It looked like a Darter but was way too big to be one. Any ideas, Resin?

I'll post a few more to show what the wings look like in various positions in flight.