I seem to have a lot of wasps in my backyard. I have a townhouse, and wonder why these creatures have picked MY backyard over anywbody else's. I have no hummingbird feeder, and no trees (new house), only a bird feeder. Last year I had a wasps nest on the back wall of my house, underneath the roof. The other day, I found a wasp trying to build a nest on my BBQ (it had got under the cover), but I guess it didn't realize that when BBQ's are on-they can get rather warm-so it left. What can I do to make my backyard not so inviting to Wasps?? Is there a type of bird I can attract with feed to get rid of the wasps?? Thanx all!