Common Blackbird or what?

Thanks Andy and Woko. I have since seen a much better comparison shot and I have no doubt it is a blackbird, although the starling does look close in breeding plumage. Unfortunately my image isn't a particularly good shot, so it's very difficult to tell from that, but the markings on the rump and nape were identical to the comparison shot of a blackbird seen recently. Thanks again for your help. 

It was used to illustrate a story on blackbirds getting drunk on fermented berries and was supplied by Getty so it's anyone's guess really. The beak length was similar, including the curve at the end, and the mottling of the rump and nape also. Here's another story, with illustrative image showing the mottling, but not the long curved beak. 

I'm not set against the Starling ID, but the subject bird's beak was a bright orange (even though the sample image doesn't show that - I had to desaturate, and open up the shadows a little so the mottling was visible). 

The thing that made me think blackbird originally, rather than starling, was also the ground foraging habit of having its tail feathers up, like a willy wagtail only much bigger. I've never seen starlings do that, but I'm a rank novice at this game.

I'm glad I presented something of a challenge, Andy. I'd hate to post something that 15 users all said was a "common" something-or-other, and "why didn't I just look up the list here". 

Thanks for the definitive assessment, Araminta.