Over a billion birds die from striking U.S. buildings each year - maybe many moreBuilding collisions pose a significant threat to wild birds, with many birds not recovering from their injuries leading to a high mortality rate.
Death toll for birds hitting buildings may be over 1 billion a year in US reportMore than 1 billion birds die yearly from building collisions in the US, with less than half of injured birds surviving.
Over a billion birds die from striking U.S. buildings each year - maybe many moreBuilding collisions pose a significant threat to wild birds, with many birds not recovering from their injuries leading to a high mortality rate.
Death toll for birds hitting buildings may be over 1 billion a year in US reportMore than 1 billion birds die yearly from building collisions in the US, with less than half of injured birds surviving.