I just put this 18″ diameter birdfeeder up this afternoon . Total time 3 hours from start to finish , build and install.
It holds 2 litres of bird seed . The reason I made it was because the larger birds like the doves and blue jays won,t go in the feeders with the plastic bottle .
I usually rip enough lumber into logs to build 5 or 10 houses at a time and then cut everything else as I go . Some of the smaller simpler houses I can cut most of everything to build them at once .A lot of the cuts are done by eye so I usually do them as I go .