The refusal by the Minnesota Sports Facility Authority and the Minnesota Vikings to use bird-safe glass in the stadium now under construction drew an estimated 200 persons to a protest rally Saturday afternoon. Birders gathered across the street from the stadium site to hear speakers, and wave banners and signs. They want the stadium's huge signature "window" which will cover the end of the stadium facing downtown to be made of glass which does not reflect what is in front of it. Those reflections visually continue the natural world as birds see it, causing them to attempt to fly through. Most birds colliding with windows die. Below, author Laura Erickson from Duluth speaks to the crowd, which gathered in front of the construction site.