Analysis of The Song Sparrow

Fair little scout, that when the iron year
Changes, and the first fleecy clouds deploy,
Comest with such a sudden burst of joy,
Lifting on winter's doomed and broken rear
That song of silvery triumph blithe and clear;
Not yet quite conscious of the happy glow,
We hungered for some surer touch, and lo!
One morning we awake, and thou art here.
And thousands of frail-stemmed hepaticas,
With their crisp leaves and pure and perfect hues,
Light sleepers, ready for the golden news,
Spring at thy note beside the forest ways--
Next to thy song, the first to deck the hour--
The classic lyrist and the classic flower.