This National Geographic wallpaper contains
sitka spruce, picea sitchensis, and railroad tunnel.
There might also be
beech, beech tree, american white birch, paper birch, paperbark birch, canoe birch, betula cordifolia, betula papyrifera, and douglas fir.
Billions of birds migrate annually across the Western Hemisphere… but if we don’t know where they go when they leave their breeding grounds, how can we protect them?