-
what can I do to get rid of them?
The only thing is that your neighbour could fill in the space between the panels and the roof. If they don't do that, pigeons will quite rightfully continue to consider it a purpose-built nursery.
taking turns to slide down the Velux windows
Do you mean by accident or because they play? If the latter, that would remind me a bit of those ravens who slide down snowy hillsides and evidently have a lot of fun.
Having just looked for it, I found this wonderful video--not a raven but a crow, but still hilarious:
https://invidious.snopyta.org/watch?v=1WupH8oyrAo
Testing if this will embed, but just in case, here's the direct YT link:
https://youtube.com/watch?v=1WupH8oyrAo
I love how the crow uses a toboggan.
Here's a thing that's driving me insane. My wonderful neighbour opposite is unintentionally breeding pigeons under his solar panels. They've steadily increased to about 28. As a consequence some roost on my roof which wouldn't be a problem but for the fact that I sleep in the loft conversion. From sunrise I get them stamping about on the flat roof section and taking turns to slide down the Velux windows. Apart from rapid lead poisoning, which my daughter has bitched about, what can I do to get rid of them?