If you're tired of your Bird Buddy only holding one scoop of seed, this is the accessory for you. I built this as a fun project to challenge my modeling skills, and I wanted to share it with the community, free of charge. Designed to replace the rear cover of the bird buddy, this hopper allows you to fit almost two more scoops of seed versus the stock design. This design comes in two pieces, the hopper itself, and the lid, which connects on rails.

For best results, I have found that printing the hopper vertically provides the best structural strength. This will require support material under the bottom, but it is minimal. The lid can be printed without supports on its back. 

This can be printed in PLA or PETG, but I would suggest PETG due to its higher UV and heat resistance. I also had good luck printing it in translucent PETG, which allows me to check the seed level at a glance.