Am I Being Followed?

This cute little White-crowned sparrow is looking a little paranoid to me.  Maybe he fears the shortage of seed will go to another bird.  Better put some more out so there is enough for them all.

The stones you see in my photos is actually my "lawn."  No grass around here, no mowing.  But sharp as can be.  No walking in the yard without shoes.  Biggest problem with the stones is walking back into the house and getting the carpet filthy.