We used to sing this around the campfire at Girl Scout camp years ago. Never found a printed copy, just had one counselor who knew the song. These lyrics slightly diffrent, also.

Desert Silv'ry Blue beneath the pale moonlight
Coyotes lollin' lazy on the hill
**** **** **** beneath the far skyline   (don't remember all words)
Time for movin' cattle to be still.

Chorus:

Ho, now, the lightnin's far away
The coyote's nothin' skeery
Just singin' to his dearie.
Ho, now, tomorrow roll-a-day
So settle down your cattle till the mornin'.