We recently bought a 6 position tube bird feeder only to find out that larger birds (blue jays, cardinals, etc) don't like to turn their head/body to feed. A quick romp around google turned up a product you can buy to extend the perches, but they're $5/pair and don't fit my brand of feeder so I decided to print my own.
bird_perch_v2.stl | 416.9KB |