I don't have a pic but to keep them out of the strawberry patch I used pvc, rebar (2 foot long pieces) and bird netting.
I shoved the rebar in the ground one foot, ran the pvc on to it and arched it to the chain link. Then I covered the whole thing with bird netting held on with black zip ties. To get into it I simply slide the netting up and then down when done. Works like a champ to keep the starlings out too. Just make sure you leave no gap whatsoever or they will find it.
I will try to remember to get a pic tomorrow if this blasted rain will stop long enough.
I found this when looking for greenhouse plans and think it is cool looking and could be functional for a cover in summer and cold frame in winter.