Canada: hummingbirds succeed in halting controversial pipeline construction

Work will stop until 21 August after the discovery of an Anna's hummingbird nest during construction of TransMountain pipeline

Activists and protesters have tried fruitlessly for years to stop the construction of the controversial TransMountain oil pipeline in western Canada.

Now, a tiny hummingbird have succeeded where others have fallen short, forcing construction on the multibillion-dollar project to halt for the next four months.