Minnesota Vikings' new glass-plated stadium becomes 'death trap' for birds

• US Bank Stadium study shows birds are flying into its clear glass
• Conservation groups want authorities to make stadium bird-safe

The US Bank Stadium in Minneapolis, which opened last June and cost more than $1bn of mostly taxpayer money, is beautiful, large, glassy - and deadly to birds.

A new report from a trio of conservation groups reveals that - for wildlife, at least - vast swathes of the new home of the Minnesota Vikings are indistinguishable from the sky and birds are being killed by flying straight into the stadium's 200,000 sq ft of gleaming, clear glass.