I hunted for them but couldn't find them. That's why I ended up making the PVC ports. I did see a few for specific wild bird feeders that had perches attached and were prohibitively expensive, I couldn't tell if they would work with anything but the feeder they were made for either.
Once I'm a position to have more quail I'll probably invest a bit more time in trying to find some to make more feeders.
Once I'm a position to have more quail I'll probably invest a bit more time in trying to find some to make more feeders.