Use smell against them
Squirrels hate the smell of certain spices, such as garlic, onions, peppermint, cinnamon, lemongrass, and clove. You can use these to make sprays by mixing the ground spice with water, allowing it to cool, and putting the blend into a spray bottle.
Squirrels have a strong sense of smell, which they use food sources and shelter. You can repel squirrels using scents they hate such as, capsaicin, white vinegar, peppermint oil, coffee grounds, cinnamon, predator urine, garlic, dryer sheets, Irish Spring Soap, and rosemary.
Most online recipes for pepper in bird seed suggest about 3 tablespoons of cayenne pepper per pound of seed. You can use more, if you like.
If you have a Slinky from your childhood laying somewhere around your house, you’re in luck. If not, you can buy the original Slinky for about $2.99. Just hook the metal spring around the pole of your bird feeder and attach it to the very top. Gravity should pull the spring down, and that’s all you need to do.
As it turns out, squirrels hate coffee grounds! It’s the smell they dislike, and for this reason, using coffee grounds (especially those with a strong odor) can be useful for deterring squirrels from your yard.
Using Cayenne Pepper in bird seed is not harmful to birds at all. People use it in their bird seed feeders to deter squirrels and other rodent pests. This is something recommended by the RSPB.
Squirrels hate the smell of pepper, mint, mothballs, predator urine, skunks, coffee, and cinnamon, among others. Squirrels have an excellent sense of smell, which they use to find food buried up to 1 foot underground and stay away from danger.
They’re said to dislike the scent of coffee grounds and peppermint, or you could make up your own recipe with vinegar, garlic and onions or peppermint oil to spray in the garden. Chilli flakes and pepper might put them off, so try a sprinkling of these.
Squirrels can be one of the trickiest garden pests to deal with. They chomp on flower bulbs and other leaves, dig up your favorite plants, and otherwise love to wreck your garden. Protect it by grating some Irish Spring soap around your plants. Squirrels can’t stand the smell of it and will stay away.
Baffles. Often the best way to deter squirrels, a baffle sits above or below the feeder (usually below, for a shepherd’s hook feeder). It wraps around the pole and physically blocks squirrels from climbing up to the feeder. There are two kinds of squirrel baffles that you can buy: cylinder baffles and cone baffles.
Keep them off by mounting your feeders on tall, smooth poles that chipmunks can’t climb. Chipmunks (and squirrels) can also be thwarted by adding a baffle above or below your feeder — they’ll slip off it before they reach your bird seed.
Many people use products such as Vaseline, WB-40, axle grease or another greasy or oily products, with the idea that this provides a slippery barrier that the squirrel can’t get past. At least initially, the animal slides down the pole while trying.
Capsaicin, the compound in hot peppers that makes your tongue burn, only affects mammals—not birds. You can purchase capsaicin-coated bird feed products, suets, and sauces on the market (such as Cole’s Hot Meats, available on Amazon) or just mix some cayenne pepper into seed you already have.
Squirrels have an extremely strong sense of smell which is what allows them to thrive during the fall and winter. Due to it’s pungent aroma, squirrels are sensitive to vinegar and stay away. You can spray a diluted solution of white vinegar near areas where squirrels frequent to repel them.
Does cayenne pepper hurt squirrels? Cayenne pepper will burn squirrels’ mouths just as it would to humans. There’s absolutely nothing to worry about because cayenne pepper doesn’t put squirrels into any harm, other than just driving them away from eating more bird seeds.
Spicy Seed: Mammals, including squirrels, are sensitive to the perceived heat of pepper, but birds are not. Adding cayenne pepper or similar spices to birdseed can deter squirrels, but it can wash off and must be used consistently for the best effects.
Birds are not sensitive to capsaicin (the compound that gives hot chili peppers their spiciness), but squirrels and other seed-eating rodents definitely do not like their food spicy. One whiff of hot sauce in the bird feeder will be enough to encourage them to nibble elsewhere.
The Center for Wildlife says there are many ways to deter squirrels from climbing feeders, however, Vaseline and other lubricants can harm the animals. “Please do not coat your bird feeders in Vaseline, oil, butter, or anything like that.
Lighthouse Shaped Peanut Feeder
This lighthouse shaped bird feeder holds a large amount of shelled peanuts, so there will be plenty to go around for the woodpeckers, nuthatches and blue jays. The durable metal mesh will deter squirrels from chewing on it.
Unlike rope or wire, squirrels can’t climb on the fishing line because it’s too slippery, Carl said. He’s been doing this for about 25 years. He likes to sit outside his Bethlehem apartment and watch cardinals and finches, which has also made him an expert on squirrels. “Wire they’ll climb on.
Coffee is an environmentally friendly way to repel unwanted insects and animals in the garden. The smell of the coffee repels snails, slugs and ants. You may also have success using coffee grounds to repel mammals, including cats, rabbits and deer.
In addition, coffee, coffee beans, coffee grounds, tea and soda should never be consumed by pet birds, because the effects of caffeine can cause cardiac distress including arrhythmias, hyperactivity and possible cardiac arrest.