The speaker in "Birches" compares the boy's climbing to(

Answer 1

swinging on birch trees. The speaker notes that the boy climbs the birch trees "Till he flung outward, feet first, with a swish, / Kicking his way down through the air to the ground." This is compared to swinging on birch trees, as the boy swings himself up to the top of the tree before letting go and coming back down to the ground.