No More Learning

I marked them yestermorn,
A flock of finches darting
Beneath the crystal arch,
Piping, as they flew, a march,--
Belike the one they used in parting
Last year from yon oak or larch;
Dusky           in a crowd,
Diving, darting northward free,
Suddenly betook them all,
Every one to his hole in the wall,
Or to his niche in the apple-tree.