The accompanying photos show what may be a wasp nest attached to the brick wall of my home, and adjacent to flower gardens. In light of colony collapse disorder among honeybees, may one presume that wasps, among other Insecta, are deputizing as alternate pollinators? I also have Paper Wasp nests (Polistes exclamans) resident near the same flower gardens, and I maintain a prudent and cordial relationship with these insects, neither provoking nor intimidating them. The photos suggest that Mud Dauber wasps are building nests nearby. These latter wasps are said to be nonaggressive, but I treat them with the same circumspection as their Polistes cousins, who are said to be more aggressive. As I have never seen the purported wasps building these mud nests, I can't photograph them as a means of identity. Can you, using just the nest photos, suggest the insect's identity? Thanks for any information you can provide, and best wishes.