Birds nesting in soffitts


We have a situation with birds (sparrows/starlings) nesting in our soffitts. Previously we have had starlings nesting at the front of the house, but now they are nesting in the rear soffit and at this time are removing pieces of insulation outside through the vents.

Is this something that we should be concerned about? or do we just allow this to happen?

Hopefully we can get some insight if we need to do anything