New Bird Seed

I had been buying a giant bag of bird seed at BJ's that was their generic brand.  I wanted to try to attract more cardinals and goldfinches to my feeder, so I decided to buy some "nicer" more expensive bird seed at Petsmart.  But, apparently the only birds that like the "better" seed are mockingbirds - which I don't like because they are mean birds who constantly harass other birds.  Then, recently I finally saw some other birds at the feeder - I hurried to get some pictures since I was so happy to see something other than mockingbirds out there!  Hopefully they'll come back so I can use up the rest of this "better" seed and go back to the BJ's brand that attracted lots of different birds.