Advice for a DIY fruit cage?

I've never netted my black/red/white currants. It used to be that only the red currants were taken but for the last few years I have been bombarded with pigeons.
Not only are they taking everything but they keep sitting on the branches and snapping them. Mine are about 10foor away from the GH and I've been wondering if I could make something hooked on o that so it saves us from doing all 4 sides.
Pretty pointless at the moment having any fruit bushes - they have already had every gooseberry off several bushes!