House sparrows and starlings are the most likely candidates.
Sparrows in roof uk.
But feral pigeons swifts swallows jackdaws and barn owls are also known to nest in roofs.
For smaller problems such as sparrows nesting within your roof the problem must be tackled by scaring the birds out and then finding and blocking up any holes that could be deemed large enough for them to re enter your loft space.
After establishing that the nest is indeed empty you can remove any debris and seal up small holes that the sparrows use to gain access.
If you are worried about the impact of sparrows nesting in your roof you will need to wait until the end of the nesting season to take action this is likely to be the autumn.
We have sparrows nesting in our roof void and the house design means it s easy to lift up the tiles from above and see where they ve been sleeping.
When i had to replace some of the soffit boards a few years ago there was quite a lot of nesting material to remove though.
They don t make a wet mess and it s just dry straw they ve dragged up there free insulation is anything i guess because they quite literally don t shit where they sleep.
What can i do.