In most situations these hawks will work provided the Magpies can see the Hawk profile above them from where they are landing. All you need to do is to install the Hawks high above the areas where the birds are doing the damage or at the edge of your crop.
Magpies will be either a territorial pair of birds that will own a patch of land and defend it as their territory, they will also have a nest site within their territory or they will be unattached birds that do not own a territory and live communally in flocks of 20 to 50 adult birds. They will roost communally and feed communally usually in open paddock areas.
The difference between the two groups is that a territorial pair will defend their area very aggressively and any threat that enters their patch will be attacked. This will include a hawk or predatory bird and when they find out that a plastic Hawk will not harm them they will ignore it.
Unattached adult birds are different they will not attack predatory birds and will move away from any threat including a Hawk Bird Scarer.
Magpies feed on insects, worms, grubs and usually do not feed on fruit or vegetables or other crops.
If your magpies are unattached adult birds you will have excellent results in scaring them away but if the Magpies are a paired of territorial birds you will most likely not have much impact on them using a hawk bird scarer or other scaring device.
There are two methods. Refer to the installation page for details. The best method for you is to use strong fishing line or thin wire to suspend the hawk between tall trees, poles etc. You will obtain excellent results using this method.
The Hawk is unique because it is a full size imitation hawk made of durable weatherproof plastic. As birds instinctively fear the Hawk they are also scared to come within sight of the profile of this replica of a hovering Hawk.
From previous customer experience in similar situations we can say that a Hawk Bird Scarer will work for you. If it doesn’t, we offer you a money back guarantee.