Does anyone else have dogs that do this?

[wolf_Q]

Sydney is a little weirdo dog. She likes to "bury" her dog food. In this video (attached) she's covering her dog food with a blanket. She covers and uncovers it repeatedly, mostly using her nose. Often she'll just sit there and nose her food around in the bowl just like that. Sometimes she'll take just a small piece of dog food and cover it in a blanket too. She doesn't do this with treats, just dog food. Is she trying to save it for later or just being strange? Anybody else's dogs do this? I've never seen another dog do this.

*Please excuse the mess and darkness, it's taken in their (Reggie and Sydney's) playpen in the basement that they stay in when we're not home, I had just put them in it when she started doing it. I tried to lighten it but it didn't help much. The video is about a minute long, but she kept doing it for at least 5 minutes straight!