Nesting season should be over now, that means that you can now start to prune hedges.
Before clipping hedges it is mandatory to check for nesting birds beforehand.
Hedges should be cut back before birds start to nest in them.
Do birds nest in your garden? Hedges seem to be preferred nesting places! Add your vote: http://j.mp/Ntg6gX
Leave nesting birds undisturbed in garden shrubs and hedges.