Maybe this isn't the same song, but I'd bet they're both derived from the same source.

Transcribed from the sheet music at http://hdl.loc.gov/loc.music/sm1874.01141

THE WOLF IS ON THE HILL
A Hunting Quartette for Male Voices
Also Arranged for Mixed Voices in the key of (Eb)
Words and Music By C[harles] A. White.
Author of Moonlight on the Lake,
Come Rise with the Lark, Give Me My Own Native Isle
Boston: White, Smith & Company, 298 & 300 Washington St., 1873.
...
The wolf is on the hill.
The wolf is on the hill
We hear him howling still.
We hear him howling still.

Guard your flocks today.
Yes, guard your flocks today.
We'll bring the foe to bay.
We'll bring the foe to bay.

The wolf, the wolf is on the hill.
We hear him howl, is howling still.
And now, and now with beating hearts,
We'll sally forth the foe to kill.

Up the mountainside we go,
Ev'ry man his mettle show.
Crack we'll hear the rifle go,
Bringing down the foe.

Up the mountainside we go,
Ev'ry man his mettle show.
Crack we'll hear the rifle go,
Bringing down the foe.

The wolf is on the hill.
The wolf is on the hill.
We hear him howling still.
We hear him howling still.

Hunt him down with dog and gun.
Hunt him down with dog and gun.
The chase, the chase has now begun.
Baying hounds are on the trail.
Soon they'll bring the foe to bay.
They're true. They never fail.

The wolf is on the hill.
The wolf is on the hill.
We hear him howling still.
We hear him howling still.

The wolf is on the hill.
The wolf is on the hill.
We hear him howling still.
We hear him howling still.

The wolf is on the hill.
The wolf is on the hill.
The wolf is on the hill.
The hill, the hill, the hill, the hill.