![]() ![]() They then turn themselves off at sunrise. ![]() Yard Sentinel repellers can also be set to run on a constant loop or only come on at sundown. Some are set to raccoon while others are set to raptors, so on and so forth. Several units can be installed around the yard, as we have done, and set to keep out various predators. On the back of the unit is a dial which allows you to set it to a fixed frequency based on the predator you mostly want to deter. For raccoons, we mount them roughly 15” from the ground and for raptors, 8 to 12 feet high. These small green units are mounted on a tree or enclosure wall at different heights depending on what you want to repel. Yard Sentinel makes an interesting product that acts as an ultrasonic pest repeller. Voles love to eat babies and although not always an immediate threat, raptors such as hawks, eagles and owls have been reported to make off with one they can easily carry in their talons. Even some larger species may be at risk to them especially when they're in a younger, smaller stage. Raccoons have been known to annihilate a group or collection of turtles or tortoises in just one night, so it is especially important to have methods in place to deter them. Some of these animals are highly intelligent and able to learn quickly when a human’s presence is no longer near. Most attacks from predators occur at night or when the keeper leaves for several days. Skunks and fox love to unearth nests and devour the eggs. Crows in particular learn to recognize nesting females and will rapidly make a meal out of the eggs as they are being laid. Raccoons are of course the number one threat to outdoor chelonian collections but mink, rats, voles, coyote, fox, raptors and even ferrel dogs and cats are all potential killers. ![]()
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