PEREGRINES are fighting an aerial battle in the skies above Bolton town centre with their enemies — a pair of ravens.

The bids have been vying for nesting space on the town hall.

And it seems the peregrines may have won has they have moved into the raven's old nest.

The peregrines which have nested on the civic building for several years — last year in a specially made nesting tray — were ousted from their regular site when work started on the town hall roof in October.

They birds of prey have set up home on the north east corner of the clock tower while the ravens have had to vacate their nest and are now on the south east corner.

Judith Smith from the Manchester Raptor Group, said the peregrine nest is a deep one so they cannot see how many eggs are in it and they will not be able to ring the chicks this year.

She added that the ravens have the option of changing nest sites as they build a stick nest while the falcons are dependant on using a nest tray, or someone else's nest.