So tonight I walked out the front door to go throw apples out to the edge of the woods for the deer. We have a little sidewalk across from the front door that I have a long mulched flower bed against it. I did not see this nest yesterday, so it is new. I see not a thing flying around it. It is raised about 1 and half inches from the ground width of it is about 3-4 inches. The hole is centered and about an inch wide or slightly less perhaps? In all the years at the farm, I have never seen a nest like this and I have seen many yellow jacket nest in the ground in the pastures...but this?????? It almost resembles puppy chow with a hole in the center...and no, my dog was not in that area.,..or any other dog. HELP!
Would a hummingbird do that?
Meanwhile I am going to be watching it with binoculars in the morning to see what the heck made it.
I think Posamari is correct...and Nancy. I have been watching it and there's no activity so it sound like a solitary bee. I read the arcticle you guys sent and they seem like good bees to have around but I sure don want an invasion of these ugly nest in my flower beds, so I will let this one stay for now...I just hope she does not spread the word that theres an abundance of land to build on 
Could be a ground wasp nest
