It is estimated that over 1 billion birds die as a result of window collisions each year in North America with 99% of these occurring at residential and low-rise buildings.  It is considered to be the third highest cause of bird mortality, following habitat loss and predation by domestic cats.

-Up to 50% of bird-window collisions leave no evidence at all.
-Many of the birds that fly away are likely to die later of their injuries.
-Birds most often suffer concussions and internal injuries which can take days to kill them.
-If a collision kills a parent bird, the young will most likely also die.
-This is all preventable if people take action at their own homes.

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