"Liberal of song, they travel in groups, they sing loudly."
Exeter Book Riddle 57
(translated from the Anglo-Saxon by Patrick J. Murphy)
"We are little airy creatures,
All of different Voice and Features.
One of us in Glass is set,
One of us you'll find in Jet,
T'other you may see in Tin,
And the fourth a Box within,
If the fifth you should pursue,
It can never fly from you."
Miscellanies Jonathan Swift.
Sourced from Unriddling the Exeter Riddles by Patrick J. Murphy