This post from last year mysteriously disappeared and has suddenly popped up as a draft. I thought I might as well repost it.

https://community.rspb.org.uk/ourwork/b/scotland/posts/do-it-yourself-bird-feeders

In the meantime I find just throwing bird food on the ground or bird table is effective. I know there are reasons not to do so but at least I get this fine chap coming to dine most days.