New Science Photo of the Day: 8

scrub jay
Our local Woodhouse's Scrub-Jays (Aphelocoma woodhouseii) have developed quite a taste for peanuts. If you watch the bird after it grabs a peanut, it will fly to a bush, hop to the ground, scratch the dirt, and then fly to another bush and repeat the process. After doing that several times, it returns for another peanut. Why does it do this?