Harris Hawks are used to scare away the pigeons

Westminster Council wants to introduce a bye-law to stop people scattering seed on the north terrace.

Once the deadline passes on Friday, the application will be considered by the department of local government.

All other areas of the square are already covered by regulations which have been enforced by London mayor Ken Livingstone since 2003.

Cleaning costs

In September, figures released by the Liberal Democrats showed Mr Livingstone had spent at least �226,000 in his quest to clear Trafalgar Square of pigeons.

He hired a pair of Harris Hawks to fly over the popular tourist spot as well deploying megaphones to scare the pigeons away.

Westminster councillor Alan Bradley encouraged all those with a view on the situation to contact the Department for Communities and Local Government.

He said: "We feel that the pigeons leave a significant amount of mess which is unpleasant for the large number of visitors to Trafalgar Square as well as people who work nearby.

"The resulting cost of cleaning the North Terrace is very high."