Instruct: Classify a review into positive or negative sentiment.
Query: Not Squirrel proof

I have had this feeder for about a year. The squirrels have figured out how to lift the top and climb inside then proceed to clean out the feeder completely. In addition, they have somehow managed to bend the metal "perch" feeder area so that even when they step on it, it doesn't completely close and they have access to the food. Stop-A-Squirrel feeders are much better.