PVC pipe nest box ?

[flap]

Fincher, what diameter of PVC did you use?

[finchbreeder]

I used 10mm and 15mm diametre, but mine were only enclosed at one end and mounted horizontally not vertically. Maybe that's what I did wrong.
LML

[flap]

We are thinking of trying both horizontal and vertical. I have been told that finches don't need deep logs so might make a short and wider vertical one and then a narrower but longer horizontal one. Also will had gouldian nest box so they have choices.
Really liked the round horizontal wire and wood design in one of the threads so will make those and fill them with grasses etc and see what happens.