I should note that this was crossing the Columbia River, a few of you responded that there was a roost on the Willamette. On Mon, Mar 2, 2015 at 1:26 PM Michael Medina <802redwood@xxxxxxxxx> wrote: > Today around 11 am, while driving over the l-205 bridge, I saw 60-90 great > blue herons in flight. Was driving in traffic, so count is inaccurate, but > I can't say I've ever seen this. > > Michael Medina > Portland, OR