By Sandra Abma, CBC News Ottawa, February 28, 2017
Look closely at the construction of the National Arts Centre's towering new glass facade, and you'll notice small markings running up and down the giant panes of glass.
The designers behind the major renovation are hoping birds will notice the markings, too — and be deterred from flying into the Elgin Street building's windows.
http://www.cbc.ca/news/canada/ottawa/nac-glass-facade-bird-deaths-1.4001044