Sorry, tartonterro and manicsousers, to be so late to reply to your suggestions to my cry for help (work and all that), but I am impressed!!! Many thanks for your advice!
These cages would surely do justice to the 30 or so fruit-bushes we have collected so far and keep the bloody pigeons out.
Love both ideas - now it's just a question of getting my partner to decide which one he will consider first. Will keep you posted of our efforts.