It turns out that migrating birds can reach some astounding heights.

Normally, birds tend to fly around somewhere near the level of the engines on Chesley Sullenberger’s Airbus 320. Some birds,  like vultures and other predatory animals can rise to 10,000 feet or so to scan the area for any dehydrated cowboys crawling desperately along the ground next to cattle skulls after the bad guys foolishly left him for dead.

During migration, so birds can reach altitudes of 20,000 feet or more – even higher if large obstacles like mountain ranges are in their flight path. Fortunately, their bids lungs are much better at mammal lungs at pulling oxygen from thinner air, which is unfortunate because the thought of a flock of geese wearing little oxygen masks makes me giggly.


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