MINNEAPOLIS (AP) -- The Minnesota Vikings have pledged an additional $500,000 for enhancements to the new stadium - but the improvements won't improve bird-safe glass.

The Minnesota Sports Facilities Authority reportedly agreed Friday that the Vikings would pay $518,000 for another elevator, two mobile concessions stands, and redesigned media and skyway areas.

About two dozen bird lovers attended Friday's authority meeting, they argue that glass in the stadium's current design will kill migrating birds.

Protesters told the authority to spend an extra $1 million for bird-safe glass but that's not in the plan.

Authority Chairwoman Michele Kelm-Helgen told them the building was designed with a bright, outdoor feel, and the glass on the roof will be fritted to help birds avoid collisions.