How many bird species have collided with buildings during migration?
Correct Answer: A. In Toronto, FLAP has found over 164 species of birds that have collided with buildings, including white-throated sparrows, ovenbirds and common yellowthroats. Half of these birds die of head trauma, broken beaks or feather damage. The lucky ones that survive a collision can easily become trapped in streams of artificial lights — flapping in the beam until they collapse from exhaustion or become disoriented.
Not this many, thankfully!
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