meriad wrote:To get in to anywhere they need a gap. You might have a tile that is ajar, or a large enough gap under the spouting. You might need to fill the hole or gap with some netting or plastic mesh to stop them getting in.
Only problem with that is you need to make sure to check it very regularly in case a bird or other animals gets caught in the netting and cannot get out
We have two products here, ne looks like an overgrown baby bottle brush, and the other is a hard plastic mesh mor than a netting. Our new house has that. No way an animal would get stuck in it, but then we don't have things like squirrels