American Pie

These impressions, and there are many, have been filed under UFO. However, I think the bird is an American Tree Swallow, maybe playing in the mud.

I think there is only one and the same bird appearing in all the photos although last year there was definitely a pair. I suspect our "season" is  a couple of weeks late since there is also no sign of the Baskettails hatching - will check again today.

WOB