A riddle here I have for you-

Small, grey, annoying.

Three clues I now speak-

Small, grey, annoying.

Can you guess what creature this may be?-

Small, grey, annoying.

You should now clearly see-

Small, grey, annoying.

Small it is,

Also grey,

And, oh-so-very annoying.

Gandalf,

Gandalf,

Gandalf the Grey,

If his be the name you spoke,

Then right you be-

Gandalf the Grey-

Small,

Grey,

Annoying.