I haven't yet gotten a decent photo, but I'll update this when I do. The Shouty Corvid of Twickenham is a bird - possibly a raven but I reckon it looks more like a carrion crow - who hangs around on King Street in Twickenham. Its main pastime is perching off the end of bus stop roofs and shouting at passers-by. I have no idea why the Corvid does this, but being such a character it's become very much a feature of the high street here.
Serious gardening next week.