5. The Upside-Down Feeder System
This innovative design uses gravity and positioning to deter squirrels while allowing birds to feed normally. The feeder is mounted upside down beneath a solid platform or surface, forcing squirrels to hang awkwardly.
Why It Works
Birds are lightweight and agile enough to cling to feeding ports upside down, but squirrels struggle to maintain balance and reach seed while inverted.
Materials Needed
- Platform board or planter saucer
- Hanging feeder
- Strong cord or chain
- Hooks and eye screws
How to Build
Mount a platform or board horizontally and hang the feeder upside down beneath it. Make sure the feeder ports remain accessible from below but shielded from above.

Best Placement
Install under decks, pergolas, or tree branches where squirrels would normally climb down from above.
Advantages
- Highly effective
- Uses gravity as defense
- No moving parts
- Works for tube feeders and bottle feeders
This is an excellent solution for homeowners dealing with squirrels that attack from overhead structures.