Safflower vs Sunflower- what do birds prefer?

This is a very unscientific experiment with hulled seeds. If you want to feed the birds without the mess on the ground under the feeders you need to feed seeds without hulls. This type of feed is expensive compared to regular bird feed with black sunflower seeds with the shell on. I’ll do a follow up video when one of the feeders in this video is empty. #birdwatching #birdfeeder #bird