I hung a suet cage and a finch feeder sock in the yard at my new apartment two months ago.

Nobody ate from it. It was weird. Birds constantly tweet and sing here from dawn to dusk, including cardinals, who can eat from the finch feeder. The guy downstairs throws out popcorn for them every morning and they swarm in to gobble it. But they all ignored my feeder.

Suddenly, five days ago, the sparrows discovered the suet and devoured it in three days.

Have you ever seen a bird feeder that birds did not discover in a few days?