Most of the migratory birds that travel from South America, right up to the North, use the boreal as a nesting and often a breeding area.

• 它对迁徙的鸟类有着非比寻常的意义--大部分迁徙的鸟类从南美长途跋涉来到北方，在北部森林搭巢，而且经常有鸟类在此繁殖后代。