Yes, I have observed birds shelling seeds many times. I always buy the sunflower seeds for the wild birds in wintertime, but this is the first time I bought the seeds for both the wild birds and my flock, too. :D
I have some black oil sunflower seeds (they're not very large seeds) that I feed the wild birds with. I heard that it's a good winter treat for chickens, but I was wondering: should you feed them with the shells or without? I have been researching the subject but the articles don't specify. Bing...