July 24, 2014, 3:51 PM
A conservation group is warning that unless a planned sports stadium is redesigned to meet bird-safety specifications, its glass will pose a big threat to migrating flocks.
The new Vikings stadium under construction in Minneapolis could be a so-called "death trap" for migrating birds, according to the local Audubon Society. Almost a billion birds die each year from flying into buildings nationwide, the group told CBS Minnesota.
Joanna Eckles of Audubon Minnesota told the station that reflective surfaces are seen as real habitats -- trees, clouds and bushes -- by birds. Thinking they see their perfect landing spot or wide open sky, they unknowingly fly into the glass.
The Audubon Society has documented nearly 125 species of birds as victims. The group says deaths could be prevented with "fritted" glass, a type of glass that's lined with dots to make it easily visible to the birds.
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