Northumberland park rangers are asking people to treat the wall with respect and take poo bags home.
The past two winners of the Grand National - I Am Maximus and Nick Rockett - head the five-day confirmations for Saturday's race at Aintree.
Jewish groups and MPs call on the London festival to cancel the controversial rapper's headline booking.
The bird was found by airport police near terminal one after being spotted perched on a rubbish bin.
An assault outside MyBar on Charminster Road was reported to police in the early hours.