So it seems the birds (common sparrow) have taken a liking to the verandahs on my house both at the back and front. They have multiple nests and just make a mess all over my verandah.
Would anyone know of a good deterrent? I have heard of a 'fake owl' that you can place on the verandah, but you need to keep moving it otherwise the birds catch on that its not real. We have also tried blocking the holes on the roof of the verandah, but they still seem to sneak through.