The Surprising Causes of Bird Deaths in Canada

1 October 2013Nature

CBC News:

An Environment Canada study released Tuesday shows that more than 270 million birds are killed in Canada every year from human-related activity, which includes deaths caused by cats owned, or not controlled well, by humans.


  1. Domestic and feral cats: 200 million
  2. Power lines, collisions and electrocutions: 25 million
  3. Collision with houses or buildings: 25 million
  4. Vehicle collisions: 14 million
  5. Game bird hunting: 5 million

Wind turbines, airlines, and oil sands producers get terrible press whenever they inadvertently kill birds. I’m not saying they shouldn’t be doing as much as possible to avoid those deaths, but if these statistics are accurate, it certainly puts things in perspective.