Analysis of Winter Song

OH, who would be sad tho' the sky be a-graying,
And meadow and woodlands are empty and bare;
For softly and merrily now there come playing,
The little white birds thro' the winter-kissed air.
The squirrel's enjoying the rest of the thrifty,
He munches his store in the old hollow tree;
Tho' cold is the blast and the snow-flakes are drifty
He fears the white flock not a whit more than we.
Chorus:
Then heigho for the flying snow!
Over the whitened roads we go,
With pulses that tingle,
And sleigh-bells a-jingle
For winter's white birds here's a cheery heigho!