The Isles of Scilly Bird Group (ISBG) offers membership arrangements for non-residents of Scilly under the title "Friends of the ISBG". It is open to anyone interested in birding and is offered at an annual subscription of £12 in the UK and £15 for overseas. The purpose of this type of membership is to keep birders in touch with the birding scene on Scilly throughout the year. Visit this link to join