Posted: 17/04/2016 at 12:28
How odd - we have house sparrows but they don't touch our runner beans (or any other garden plants that I've noticed). Ours are happy eating the Robin blend seed mix in the bird feeders on the fence by the Clematis Freckles. They don't touch the clematis flowers either.
Try growing white flowered runners - they are reputedly less prone to bird attack.
White Emergo is a variety I've grown in the past and found them well flavoured and crop well.
As has been said, House sparrows are in serious decline nationwide and are on the RSPB's red list.