Most gardeners have a plethora of pots accumulating in a dark corner somewhere.
These plastic containers can be offered as sacrificial tokens to the local recycling program or have new lives as birdhouses. The first step is to create an entrance. To do this, heat the pipe and melt a hole in the bottom of one pot large enough for birds to fit through. For a perch, drill a hole into which a 4-in. Insert the dowel into the hole until the end sticks out about an inch on the inside of the pot.