No, its Safflower birdseed. I get it at www.prdseed.com but I have also purchased it at Home Depot, Lowe’s and the squirrels leave it alone. The Cardinals, Doves, Chickadees and others love it. You can also google it and it will tell you more about it. I’m so glad I found it because even though I like the squirrels, they would eat all the birdseed until it was gone. Safflower birdseed, they leave alone.
I currently buy mixed seed (wide range of bird types) for 2 feeders on a pole with a baffle and then I have a finch feeder. The baffle keeps the squirrels off. Unfortunately I can’t get them to stop ruining all of my pecans (take a bite while green, drop on the ground). We have a large tree and the last few years haven’t gotten a single pecan.
I will look into that seed you mentioned.