One other thing you can try that worked for me. Get a recording of a swarm of bees. (Easy to get off of the Internet). Play it through speakers off of your deck/outside patio when you see the hawk in the area. They (the hawks and larger birds) immediately relocate and the smaller birds do not. Good luck.

Up top you have a pair of gorgeous adult Red-shouldered Hawks (a species of Buteo, aka soaring hawks). On the bottom you have a juvenile (first year) Cooper's Hawk (a species of Accipiter). Notice the Red-shouldered Hawks' fancy black/white checkered upperwing pattern, and black/white banded short, fat tail. The Cooper's Hawk is showing a good view of its long, narrow tail.

Hi Claire, Found this old thread; thought I'd rehash the past. Ha! I can't help myself. I'm a hawk watcher. Your opening photos were undoubtedly an accipiter. The grey/black banded tail is the dead giveaway. The length of it is more pronounced than that of any buteo. The wing tips of a Red-shouldered Hawk come just about to the tip of the tail when perched. A Red-shouldered would never have grey/black as its tail colors and wouldn't have such a distinction between tip of wing to tip of tail. Also, notice how widely spaced the banding on the tail is; a RSHA juvenile would have narrowly-spaced light brown/dark brown banding on a much shorter, tapered tail. Juv RSHA would have heart-shaped streaking on chest down to the belly. Since you have familiarity with the small size of Sharpies and believed this to be too large, I'd day you had a juvenile Cooper's hawk here. Also, Blue Jays frequently imitate Red-shouldereds to freak out feeding birds and lay claim to what they leave behind. Tricksy birds, they are. Perhaps you've heard them do that. But you may have heard a RSHA in your woods as they seem to cling to the east coast year-round rather than fully migrate out. This post was edited by TMFF on Thu, Feb 7, 13 at 17:31

For the last two years, I've been experimenting with methods used to deter hawks. I wanted to see if any particular method worked better than another and, I was hoping to find their achilles heel so I could perhaps create a method that would help people who want to enjoy the critters in their yard. I did this for not only songbirds but mammals, such as rabbits. I found that tape, for the hawks here, did nothing. I didn't try CD's but I would think they'd have little effect on a seasoned hunter. I tried that easily torn regular bird netting and fishing line. This did deter bigger hawks like a redtail or goshawk and definitely eagles. It did nothing to deter male coopers hawks, peregrines or sharp shins, assuming they could find a tiny gap between pieces of netting. Now if you get the holes small enough with the fishing line, it could have an effect but a quickier and easier alternative would be the aviary bird netting. I bought some on amazon. It's very strong, and the holes are 2" x 2" which is too small for any hawk to enter. That did deter them, as long as the netting completely covers everywhere the prey animal is located. So basically, a barrier is needed since gadgets used to 'frighten' or 'confuse' don't usually work. A bigger hawk, like a redtail, could possibly go crashing into the netting and if it isn't stuck in it, it would not only ruin your set-up, it would probably kill the prey but redtails here tend to avoid netting. For smaller mammals like rabbits, I recommend burying the surface of a solid corrugated pipe at least a few inches deep from the surface, not in a low spot where water can sit and possibly get in an entrance, covering up with the soil and putting a brush pile over top. Hide entrances in shrubs if possible. Make sure the pipe is pretty long at least 12 feet but preferably 18 ft or longer as hawks will try to flush the rabbits and this is less likely if pipes are longer. If you have larger mature rabbits in the area, I'd recommend you buy 8" if offered, or split the 6" pipe (that's the only size pipe our stores offer) and open it up a bit before burying, to allow a bigger rabbit entry. If trying to protect a small dog or other small animal, I'd definitely go with chicken wire whenever possible but otherwise, the aviary bird netting is strong and on a strong frame, should deter most attacks. It's also black which makes it blend in much better than chicken wire. I've tried water guns, nerf guns, clapping and yelling. Yelling is very effective if you see a hawk chasing down prey. It distracts them for a moment and the prey gets away but given you'd have to be monitoring constantly, that's not practical. But if you see it, a great big 'hey!' usually is enough to break up the chase. Nerfs work but again, you have to be there constantly. Recordings of owls or a peregrine falcon will work but usually only on juvenile hawks. I've buried pipe but found the pipe wasn't long enough and wasn't hidden well enough. All the hawk has to do is be able to put a talon at the opening of the pipe and the rabbits or whatever small animal is hiding, will flush from cover that the hawk couldn't possibly have accessed. So best protect entrances with brush or a large stone. In conclusion, hawks will go where the food is. They are also capable of retaliation when they think you're trying to stop them (confirmed by a falconer and my own experiences) and will try that much harder to thwart you. The best thing is to not concentrate any animal or bird to avoid attracting them and if you do decide to feed, hide feeders or mammals/buried pipe under trees and shrubs before they discover it because once you get on their radar, it takes a couple of years for them to forget you.