It's the bird most associated with Christmas - we're talking robins, not turkeys - and it seems they're on the increase in London.
Here's Martin Stew:
There has been a massive increase in the number of robins in London over the last two decades. Tim Webb of the RSPB explains why.
Research by the RSPB has revealed that robins in London thrive better than anywhere else in the country. Between 1995 and 2010, the charity believes the numbers of the robins rose by 76%.
However, they warn that robins are susceptible to very cold weather so the numbers may have declined since then because of the cold winters.