Just as washed out and just as useless as a piece of art, but it's much easier to make the call that this is probably just a normal Black Headed Gull having seen it standing there being unexciting and not very different structurally.
Again with the below, the video itself is rubbish. The bird is a blurry brown splodge at the bottom of the screen, and you only know it's there because it hops up and down a couple of times in a way that leaves don't tend to, but listen to that alarm call and look at the way it flits about like a mad thing. You know it's a Wren:
And occasionally, just occasionally, the video comes out looking quite respectable. In a still on this camera the Egyptian Goslings below would be just so many distant unexceptional balls of grainy blur, but throw in moving pictures and some essence of the fluffy balls of cuteness that they actually were is retained. Besides of which, seeing Egyptian Geese on the Thames is quite fun, not something I do every day and worthy of record.
So grainy, blurry, poorly-recorded videos of the world, I salute you! You are another useful tool in a birder's armoury.
And of course when you get bored of birds, you can use it to record awesome covers of popular songs in your local pub.