The initial tweet, which was published by @wildlifeaid, received plenty of public attention from social media users in support of Simon, not least of which from the RSPCA.
They wrote: “This is such devastating news, and our thoughts are with you all at this difficult time.
“Simon has achieved an astounding amount for our wild friends over the years, and his dedication to them is unfaltering, as his final wish shows. We really hope it comes true.”
Meanwhile, actor Stephen Fry praised Simon’s “extraordinary legacy” as he urged his followers to donate to the JustGiving page.