The ACO Nest Box has been designed to provide a sheltered nesting refuge for small birds, specifically blue tits.

The box is three standard brick courses high and half a brick course in width, so is easy to build in to a wall during construction. Alternatively the box may be retrospectively built in, by cutting out a suitable area, or it can be fixed to the face of an existing wall.

The protruding top lip acts as a weathershield and prevents rain running into the box from above. There are two drainage holes at the bottom of the front plate.

The top front plate is completely removable for inspection and cleaning. This should only be done when it is clear that the box is not in use.