Since house finches and many other pesty birds such as sparrows and starlings can't cling upside down, it allows goldfinches to feed without being bothered by other pesty birds which means you enjoy more colorful birds at your feeder.
This incredibly effective and unique bird feeder is designed to attract goldfinches while keeping out house finches.
Now you can feed goldfinches without feeding pesty housefinches who takeover a regular thisle feeder and don't allow the yellow goldfinches to feed.
The Perky-Pet patented Upside Down thistle feeder holds two lbs. of thistle seed or finch mix.
TIP use thistle seed only if you have squirrels thus preventing squirrels from raiding the feeder. Reason: Finch mix has sunflower which attracts squirrels.
(Squirrels are not fond of thistle seed thus preventing damage to your feeder)