Sheep on the Town Moor would be a new one. The Freeman of the city have herbage rights for cattle, which are a frequent sight.

> "herbage right" means the full right and benefit of herbage vested in the resident freemen and widows to graze cows on the Town Moor;

Source: [Newcastle-upon-Tyne Town Moor Act 1988](https://www.legislation.gov.uk/ukla/1988/31/pdfs/ukla_198800...)