Today I saw 2 hawks in my yard. The first time I saw them was earlier today, while I was by my ducks when they were swimming in their pool and the hawks were circling high up in the air. Later while they were in their pen I was inside and from my deck window I caught a glimpse of a hawk flying in our yard so I quickly ran to the pen and put the ducks in their coop. The hawks flew from a near by tree, only about 15 yards from the pen. i JUST got ducks two weeks ago and their pen is not completely finished and I didn't think a top netting would be needed as I have Rouens and they don't fly, but now I am thinking I need one for sure!! I have a new tarp I could use... would that work? Also what other steps should I take to keep the hawks away? Scare crow? I am very worried.