White bird featherless
Flew from paradise,
Pitched on a castle wall.
Along came Lord Landless,
Took it up handless,
Rode along horseless,
To the King's white hall.
A guess:
<span class='standouttext'>Spoiler : </span><span class='spoiler'> Am I on the right track with snow? And maybe rolling a snowball down a hill or making a snowman? Not quite sure about 'handless', 'horseless' and the 'white hall' though... </span>