Grey Heron.

Taken Fri afternoon at Lea farm gravel pit. He just flew across

That's nice. I'm not a big lover of Heron (all too pointy!:) ), but they do look good in flight. Grumpy, but good :)

I am amazed at how quiet they fly compared with swans.

Really? I would expect it to make quite a bit of noise as it's so big... interesting to know.