Among the embodiments of the present invention is a pest control device
that includes a bait operable to be consumed by one or more species of
pest, a pest sensing circuit, and a communication circuit coupled to the
pest sensing circuit. The communication circuit includes an activation
device to trigger interrogation of the pest sensing circuit with the
communication circuit and an indicating device to provide information
about the pest sensing circuit determined in response to the
interrogation. A structure can also be included that is operable to
position the bait, the pest sensing circuit, and the communication
circuit in a predetermined spatial relationship relative to one another.