Experts have also said that 3d footage can disorientate the brain, causing eye strain and headaches.

专家还称，3d的连续镜头会迷惑人们的大脑，引起眼疲劳和头痛。

Organisers of the annual initiative, now in its fifth year, say the bright lights disorientate the migrating birds and override their natural navigational cues.

组织者们自发一年一度的活动，到今年他们是第五次了。他们称，明亮的灯光会使候鸟们失去方向感，还会打乱他们的天然航行信号。