I am so sorry for your loss.
I'm insane about using everything, so I figured this one out: I punch four holes into every food can lid I open, from beans to corn to spaghetti sauce. I then use fishing line from old reels to tie them together. You only need a can lid every 6 feet or so, it seems the reflction off the lid throws the hawks off. I'm lucky, I have trees I can hang my "hawk net" off of. If you don't want to spend the money on good bird netting, this might work for you. If you don't have trees, maybe a tall pole?
Works for me ...