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A kestrel box is a small, wood nesting box designed to be placed on the ground or on a pole. It is a great way to support this magnificent raptor in its attempt to regain a foothold in North America. Kestrels are important predators of rodents, insects and other pests in agricultural fields and vineyards. Landowners of vineyards and other open areas are encouraged to install these boxes on their property to provide kestrels with habitat for breeding as well as natural control of pests. Kestrels are a highly visible species that are often observed flying a