Seems like you just can’t have enough bird feeders. To remedy that issue, I started printing my own with my Creality 3D printer.
There is a wide variety of styles available to print and some are more complex than others. Just find something you like and go for it.
I found a 3D print pattern for a Soda Bottle Bird Feeder on Thingiverse that I was able to print on my Creality Ender-3 3D printer. It has a larger perch than some of the other patterns. It seems to work pretty well with the exception of some of the larger black oil sunflower seeds tend to clog up the narrow part of the bottle. The smaller millet flows easily enough. Every now and then I just shake the unit a bit to keep the seeds flowing.
