I agree with Sheffield lass, if you have a ready set up bird feeding station or neighbours that feed them then you are much more likely to get the birds in. I moved to my new home in February this year after (sadly) inheriting it from my Nana, who fed the birds religiously. In the first few weeks of joyfully watching the feeders and tables I counted over 20 species that regularly visited, and this is only a semi rural garden in Yorkshire!
All my feeders are boring base green but the colour issue is very interesting, I feel the need to test this out! Fascinated to hear of any outcomes on this issue.
Best of luck with tempting the birds to your feeders Shiffty, and please keep us posted!