"The paucity of data on the effectiveness of various techniques for
reducing bird-window collisions in a real-world setting is a problem for
architects and glass manufacturers who have to put these ideas into
"A lot of the advice conservation organizations give to architects is
along the lines of "don't use a lot of glass near big bodies of water,"
says Sheppard. "Well, how close is near and how big is large?" she asks.
"Architects are used to using things they can measure."