Maybe some shade cloth. I am far from an expert at this. But. Me and my husband use shade cloth on top of part of the run. You can get all sizes from AmazonAfter the first time they are likely to avoid the netting. Just keep picking them out.
I think they just can't see it, or can't judge the space of the netting holes. You might be able to cover the area with a very light piece of dark fabric so they learn to avoid the area.
