I've seen the crows throw a few peanuts (in the shell) back into their throats so they can pick up more to carry away. But until tonight I've never seen a blue jay do the same thing. I had four peanuts and two jays came calling. The first took a peanut and flew off. The second did the same. Then the first came back, tossed back the smaller of the two remaining nuts, took the last in its beak and flew off. The second one came back expecting to find the remaining peanut. It hopped from one spot to the next looking to see if it had fallen beside the tree. It was gone.