Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Won't keep out grackles

It's important to know that while this may keep out squirrels, it WON'T keep out those "thug" birds.I hung this feeder out today, because my local bird store told me it would keep out larger birds. Well, the grackles just love it. They've been hanging on it all day. Because the cage is only 8" in diameter, their long beaks easily reach through the cage to get the seed, and they've been jealously guarding it as their personal food source all morning. Sorry songbirds!