Our story on Twit Twooo the owl has prompted comments on our Facebook page.
Martin Veart says: "Is it delivering a letter from Hogwarts?"
Michael Jones says:"My old friend is back on the bridge. I called it Hooter ... Being homeless you see more than anyone ... and if you hold your hand out with meal worms you can feed him. Seeing this has made my day, thanks ITV London. PS: He loves mice as well, his mum is around as well"
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Metropolitan Police officer, Tom Harrison, has been crawling the course since the race began on Sunday morning.
The Old Bailey heard how Syed tried to get weapons online, including a bomb vest, and trawled the web to find a busy area launch an attack.
Hours after completing Sunday's course some of the runners put their medals on auction site eBay, with one attracting bids of almost £92.