MINNEAPOLIS (AP) - Activists who want bird-safe glass installed at the new Minnesota Vikings stadium are asking Governor Mark Dayton to remove the chairwoman of the Minnesota Sports Facilities Authority board.

Members of Minnesota Citizens for the Protection of Migratory Birds are upset that Michele Kelm-Helgen has brushed off requests not to use a transparent glass that could lead to bird collisions.

The board approved a number of changes to the stadium design at a public meeting Wednesday.

Group member Wendy Haan says that shows there's still time for bird-safe glass to be installed at the stadium instead.

But Kelm-Helgen says the transparent glass is already being manufactured and slated for installation next year.

The governor said in a statement Friday that he believes Kelm-Helgen is "doing an outstanding job."