3 ms·
Air currents provide most of the flight's energy.
by moralestapia 4y ago
Air currents provide most of the flight's energy.
- jononomo 4y agoApparently they flap their wings for the entire trip. Also: "Their internal organs undergo a “strategic restructuring” before departure. The gizzards, kidneys, livers and guts shrink to lighten the load for the trans-Pacific journey. Pectoral muscles grow before takeoff to support the constant flapping the trip requires."
- jononomo 4y ago"Other birds do stay aloft for long periods using a technique called “dynamic soaring,” while godwits power themselves by continuous flapping, which takes far more energy."
- moralestapia 4y agoOk but still, air currents provide most of the flight's energy. Otherwise, as OP correctly pointed out, the physics don't make sense.