Tim GilmerIt starts with no alarm clock and no expectations. Almost always, birdsong coming from the 100-year-old walnut trees wakes us. There is no pressure to get up, no waiting obligations, just the quiet sounds of a Sunday morning. Before long my wife Sam and I and our 5-year-old grandson, Cooper, are driving leisurely along the Willamette River.

At Oregon City we drive through the world’s most efficient and friendly Starbucks. I order two grande triple nonfat lattes for Sam and me and a chocolate croissant for Sam. Cooper quietly occupies himself with Sam’s iPad in the backseat. Next we drive through a McDonald’s across the street for pancakes and sausage for Cooper and an egg and sausage McMuffin for me.

Our destination, Clackamette Park, is only a quarter mile away now, bordered on the west by the Willamette and on the north by the Clackamas — a green island populated by tall cottonwoods, geese, ducks, pigeons, and sometimes seagulls. We park near the boat ramp so we can watch the boats put in and take part in the hunt for the rivers’ greatest treasure, Chinook salmon. But we have come to feed the big birds.

The pigeons are expecting us. They swoop low in a circle, turning en masse as if they are one organism, performing their synchronized flying act just for us. If we throw out bread crumbs, they cut their performance