Had a Tilley Hawk (that's what we always called them) try to take my Mojo dove off a power line the other day. Twice. Same hawk, broad daylight. We take a fishing rod and weight, throw it across the line, then attach to decoy and reel it up to 1 foot under the line. Helps with low bird situations the Mojo creates sometimes. We also do this with standard decoys and use a screw on the bottom of the decoy to catch the line and make the dove stand up just like a live dove does. It flat out works, especially when they get mojo shy which doesn't take long but hawks give them a fit at daylight.