Not even an hour after I filled and hung this feeder I saw a red squirrel, hanging off the wires upside down, reaching in the feeder with his paw, eating seed.So... I sprinkled habanero powder on the seed and feeding ports. This worked for less then a day.Day three I noticed half the seed was gone and there wasn't a bird in sight. When I went out to add water to the bird bath I discovered the squirrels had removed the top of the feeder, dropped it to the ground and most likely were the culprits of massive seed loss.Bottom line, IF squirrels are a problem, keep shopping. This feeder is definitely NOT squirrel proof!