Quote from council website:
Paisley Moss is owned by Glasgow Airport Limited. The site was declared a local nature reserve by the former Renfrew District Council in 1993. The reserve is now managed by a partnership between Glasgow Airport, Renfrewshire Council, Scottish Ornithologists’ Club, Scottish Natural Heritage and the Scottish Wildlife Trust.

I have emailed Renfrewshire council for comments. I could not find any email for contacting the Airport – so I will probably have to use snail mail 🙁

I’ll keep you informed if I get anywhere.

Kenny