The 5 7 9 rule for bird feeders tells you to hang your feeder at three key distances. Mount it 5 feet (1.5 meters) off the ground. Keep it 7 feet (2.1 meters) from any surface a squirrel can jump from. Place it 9 feet (2.7 meters) from the nearest tree trunk. These three key numbers work together to create a zone that squirrels can't reach no matter how hard they try.
I used to lose half my nectar to a gray squirrel every week. That critter would hang off a branch and drain my feeder by noon. In my experience this bird feeder placement rule fixed the problem fast. I grabbed a tape measure and shifted my feeder to match all three distances. Squirrel visits dropped to near zero within 7 days of the move. The whole job took me about 20 minutes with a new shepherd's hook.
The math behind this rule comes from how far squirrels can jump. Gray squirrels leap roughly 5 feet (1.5 meters) straight up from flat ground. They can also clear about 8 feet (2.4 meters) across from a raised spot like a fence or branch. Hanging your feeder at 5 feet puts it just past their vertical limit. The 7-foot gap from spots like railings beats their horizontal range. And the 9-foot buffer from tree trunks covers the extra push squirrels get when they spring off bark at full speed. Each number targets a different way squirrels try to reach your food.
This squirrel proof feeder placement method was built for seed feeders. But it works just as well for your hummingbird setup. The 5-foot height lets you refill and clean your feeder without a step stool. Hummingbirds feed at all heights, so this level won't push them away at all. The tree spacing keeps your feeder visible to passing birds. They still get nearby branches to rest on between feeding rounds.
You should also think about what your yard looks like from a squirrel's point of view. Walk around the area and look for anything at waist height or above that sits within jumping range. A garden table, a raised planter, or even a tall trash bin can give a squirrel the boost it needs. I found that my recycling bin gave squirrels a 4-foot head start toward my feeder until I moved it across the patio. Think like a squirrel and you'll spot gaps in your setup that you might miss otherwise.
Putting this rule to work in your yard takes a few easy steps. Grab a tape measure and check each distance from your planned spot. A shepherd's hook makes hitting that 5-foot mark simple and clean. It gives you a freestanding post well away from other structures in your yard. The 7-foot rule also applies to fences, deck rails, porch roofs, and any other raised surface. Even a stacked woodpile can serve as a launch pad for a hungry squirrel, so measure from those too.
If your yard can't fit the full 9-foot tree gap, get as close as you can and add extra protection. A cone-shaped squirrel baffle mounted below the feeder blocks climbers cold. I tested a baffle on my own hook after one crafty squirrel found a way past my 7-foot gap from the fence. That extra guard solved the issue on day one and hasn't failed me since. Check your distances once a season because tree branches grow fast and can shrink your safe zone before you notice. A quick tape measure check in spring keeps your setup tight for the whole year ahead.
Read the full article: Hummingbird Feeder Guide for Beginners