Abstract: A birdhouse comprises a housing. The housing includes inner volume and a camera platform disposed within the inner volume. The camera platform divides the inner volume into a nest chamber and a wiring chamber. A camera is connected to the camera platform. The housing also includes a portal that is in open communication with the nest chamber and the external environment. The housing further includes a channel extending through the nest chamber. The channel is in open communication with the wiring chamber and the environment external. The channel is configured to retain wiring.

Abstract: A monolithic concrete stock grid including a planar base portion, a plurality of triangular cross-sectional ribs extending across the base portion and parallel to each other to define a plurality of open-ended troughs extending across the base portion and the upper portions of the ribs being so sized and spaced from one another as to allow vehicle passage but to prevent stock passage thereacross. A pair of elongated reinforcing members are disposed on either side of the grid and interconnect the upper portions of the ribs and are formed integrally therewith.