Loading... Please wait...Feed the goldfinch and leave the house finch to find another feeder in someone else's yard. This bird feeder holds three pounds of thistle seed or finch mix, just for your goldfinch. The secret is having the feeding port below the perches so birds must hang upside down in order to feed, goldfinch will, while house finch will not, so attract more goldfinch to your backyard this year by putting up a bottom's up bird feeder.