I found this very small airplane in the desert on Google Maps. It appears to have about a 10 foot wingspan, and is about the size of an SUV (compare to cars nearby).
Location in Google Maps: Google Maps
I would make this a comment since I can't be certain, but I wanted to put some photos in. I concur with Ron that it's a target drone. But what target drone?
The one next to it appears to be a Ryan BQM-34 Firebee.
The most likely possibility is the Beachcraft MQM-107 Streaker.
Here is a chart of US target drones.