The younger trees, with their vibrant green needles and slender trunks, lurch wildly at the top as they are buffeted by the breeze. Although their range of motion is wide, they eventually settle back down to their home position before the next gust invites them to dance. They can bend quite a bit without breaking, and their trunks waver the least where they connect to the ground.
The more mature trees have thicker middles. Their needles and branches still whistle as the air passes through, but their trunks experience fewer fluctuations. No wild or excessive motion here, just a gentle accommodation to the whispered suggestions of the current, an acknowledgment of its will but no dramatic displacement or disruption.
The oldest trees have lost all of their needles, and many of their branches as well. With little on their periphery to destabilize them, they remain centered; steady, solid, seemingly uninfluenced by the pressure the wind exerts upon them.