Birds in Canada yearly face many serious threats to their lives. Below is a summary of key causes of their deaths below, recently quantified through scientific research in Canada (270 million deaths).
|Sources of annual, human-related bird fatalities in Canada|
|Domestic and feral cats||196 million|
|Collisions with Power lines and electrocutions||26.1 million|
|Collisions with houses or buildings||24.8 million|
|Collisions with vehicles||13.8 million|
|Game bird hunting||4.7 million|
|Agricultural pesticides||2.7 million|
|Agricultural mowing||2.2 million young birds (equivalent to 1M adults)|
|Commercial forestry||1.4 million nests (equivalent to 900,000 adults)|
|Collisions with communications towers||20,000|
Source: Richard Elliot, Director of Wildlife Research, Environment Canada. ONNATURE, Winter 2013/2014, pp. 38.